Abstract

Industrial adhesives are the invisible backbone of modern manufacturing—essential to automakers, battery producers, and construction engineers, yet rarely discussed in public discourse. A single new-energy vehicle contains more than 18 kilograms of adhesives across its body and battery pack, worth over RMB 1,200; each 600-watt photovoltaic module consumes dozens to over 100 grams of silicone sealant for frame sealing and junction box encapsulation; a modern curtain-wall building requires tonnes of silicone structural sealant. China is the world's largest producer and consumer of industrial adhesives. In 2024, the market reached approximately RMB 151.8 billion in value and 8.6 million tonnes in volume, sustaining 5–7% annual growth. Unlike architectural coatings, domestic substitution in adhesives is highly uneven: building silicone sealants are nearly 95% domestically supplied, photovoltaic sealants are domestically dominant, but automotive body structural adhesives (Henkel Terokal series), aerospace structural bonding (3M/Henkel), and premium OCA optical adhesives (3M/Nitto) still rely 60–80% on imports. This report takes 2026 as the observation point for a systematic overview of China's industrial adhesives market.

Key findings:

  • Lithium-battery demand is the dominant incremental driver. Structural adhesive and thermal interface material consumption surges as CTP/CTB technology proliferates. China's NEV output surpassed 12.89 million units in 2024, with per-vehicle adhesive usage 2–3× that of a conventional vehicle—the single strongest growth engine. Domestic penetration in battery adhesives is accelerating from under 25% toward 40%+ by 2026.
  • Silicone is the largest category and the most thoroughly localized. China is the world's largest silicone sealant producer. Domestic players including Silicone-Based Tech (Guibao), Huitian New Materials, and Guangzhou Baiyun Chemical hold combined share exceeding 60% in architectural sealants, with some sub-segments reaching 95% domesticization.
  • Epoxy and PU structural adhesives are the last frontier. Automotive body hem-flange adhesive, anti-chip coatings, and premium wind-blade structural adhesives remain dominated by Henkel, Sika, and 3M. Domestic challengers are gaining ground via cost performance in NEV platforms, but aerospace and rail transport certifications remain high barriers.
  • UV adhesives and OCA are the next localization breakthrough. The OCA market reached approximately RMB 10.6 billion in 2024 (+13% YoY). Domestic firms are accelerating entry into tablets, smartphone repair, and automotive displays; premium cinema and OLED foldable OCA localization is still nascent.
  • Modified silane (MS polymer) is an emerging mid-tier category. Combining silicone weatherability with PU paintability, MS polymer adhesives are rapidly penetrating prefabricated construction, automotive assembly, and outdoor energy storage—set to become a key battleground around 2026.

Key data snapshot:

  • China adhesives market: ~RMB 151.8 billion in 2024 (+6.3% YoY); volume ~8.6 million tonnes.
  • Global adhesives & sealants market: ~USD 60–70 billion; CAGR ~5–8%.
  • Huitian 2024 revenue: RMB 3.989 billion (+2.2%); adhesive revenue RMB 3.554 billion (+15.3%). Guibao 2024 revenue: RMB 3.159 billion (+21.2%); sealant volume 245,100 tonnes.
  • Building silicone sealant: ~95% domestic; lithium-battery structural adhesive: ~30–40% domestic; automotive BIW structural adhesive: ~20–25% domestic; OCA: ~15–25% domestic.
  • The research database covers more than 2,000 active factories in industrial adhesives, spanning silicone, epoxy, PU, acrylic, and anaerobic adhesive supply chains, with the Yangtze River Delta and Pearl River Delta each accounting for approximately 35% and 28%.

Chapter 1　Industry Overview and Definitions

1.1　Adhesive Definition Boundaries: Industrial vs. Consumer

The formal industrial definition of an adhesive is: a substance that joins two substrates through interfacial adhesion with measurable mechanical strength. The definition is broad but conceals a critical dividing line—consumer and industrial adhesives differ fundamentally in formulation complexity, application context, performance requirements, and commercial logic.

Consumer adhesives are the familiar end: cyanoacrylate instant adhesives (502), household AB structural adhesives, silicone glass sealant, electrical tape. Industrial adhesives operate in an entirely different world. An automotive body-hem structural adhesive must achieve shear strength exceeding 20 MPa after a 30-minute cure in a 170°C oven; a thermal interface material adhesive for a battery pack must maintain both adhesion and thermal conductivity through –40°C to 85°C cycling; a photovoltaic backsheet silicone sealant must survive 25+ years of outdoor UV, temperature, and humidity cycling. The technical gap is analogous to the difference between a home cook and a Michelin-starred chef.

This report focuses exclusively on industrial-grade adhesives, covering seven chemical systems: silicone, polyurethane (PU), epoxy, acrylic (including UV-cure systems), modified silane (MS polymer), anaerobic, and hot melt; and six functional categories: structural adhesives, sealants, thermal interface adhesives, electrically conductive adhesives, potting compounds, and optical adhesives (OCA).

1.2　Functional Categories: From Structural Load to Thermal Management

Structural Adhesives are the highest-load category, designed to replace or supplement mechanical fastening (welding, riveting, bolting). Typical shear strength targets are 10–40 MPa. Representative products include automotive body structural adhesives (single-component heat-cure epoxy), wind blade bonding adhesives (epoxy/PU), and aerospace honeycomb structural adhesives (modified epoxy). Structural adhesives command the highest margins in the adhesives industry, and foreign incumbents hold the deepest technical moats.

Sealants function primarily for waterproofing, air-sealing, acoustic insulation, and thermal isolation, without requiring high mechanical strength—elasticity and weatherability are key. Silicone sealants for curtain walls, PU windshield bonding sealants, and photovoltaic module edge sealants all belong here. Sealants are the largest adhesive sub-market in China and the most thoroughly localized.

Thermal Interface Material Adhesives (thermal adhesives) are a high-growth category born of the NEV era. Key specifications: thermal conductivity (W/m·K); commercial products typically range from 1.5 to 8 W/m·K. Applications: heat management between battery cells and modules, power electronics heatsink bonding. With EV penetration rising and AI server cooling demand surging, thermal adhesives have leapt from a niche to the most capital-followed high-growth sub-segment.

Electrically Conductive Adhesives contain silver, copper, or carbon-based conductive fillers; used in SMT red-glue replacement, LED packaging, and RFID antenna bonding. Anisotropic conductive films (ACF) are core materials for precision electronic interconnection, still dominated globally by Resonac (formerly Hitachi Chemical), Sony, and 3M; domestic localization remains minimal.

Potting Compounds (potting adhesives) flow into device cavities in liquid form and cure to provide encapsulation protection against moisture, vibration, and corrosion. Primary applications: NEV controllers (VCU/BMS), EV charging stations, outdoor communications equipment, solar junction boxes. Domestic localization is moderate (~50–60%), with players such as Shenzhen Xinlun, Colorly, and Hangzhou Zhijiang establishing positions in the mid-market.

Optical Adhesives (OCA/OCR) require high light transmittance, low haze, and ultra-low stress. OCA (optically clear adhesive film) and OCR (optically clear resin) are used in touch-screen and display module lamination for smartphones, tablets, and automotive displays. OCA carries among the highest technical barriers and lowest domestic penetration rates in the adhesives industry; localization is in the early catch-up phase.

1.3　Cure Mechanisms: Chemistry Determines Application Scope

Moisture Cure: silicone RTV sealants, single-component PU adhesives, and MS polymers cure via ambient or substrate moisture. Simple to apply; cure rate depends on temperature and humidity. Ideal for outdoor building sealing and automotive assembly lines (ambient windshield bonding). Single-component packaging eliminates mixing equipment—the dominant route for building sealants and automotive glass sealants.

Heat Cure: single-component epoxy structural adhesives use latent curing agents (dicyandiamide or modified amines) that activate at 150–180°C. Automotive manufacturers apply these adhesives during body-in-white assembly and cure them in paint ovens—highly standardized, precisely timed, and the foundation of Henkel's deepest technical moat.

UV Cure: UV radiation decomposes photoinitiators, completing cure in seconds. Widely used in 3C electronics assembly (UV adhesive bonding of glass and camera modules), OCA lamination, printing inks, fiber coatings, and medical device bonding. Primary advantage: extreme production speed. Limitation: at least one substrate must transmit UV light.

Anaerobic Cure: in the absence of oxygen at metal contact surfaces, metal ions (iron, copper) trigger free-radical polymerization—the mechanism behind anaerobic adhesive threadlockers, pipe-thread sealants, and bearing retainers. The unique property (cures without oxygen, stays liquid with oxygen) is Loctite's core technical barrier.

2-Component (2K) Cure: mixing part A (base) and part B (curing agent) at a precise ratio initiates the reaction. Epoxy and PU are the primary 2K systems. Metering precision is critical—a 10% ratio deviation may reduce strength by 30%—so industrial production typically employs automatic mixing valves and dual-component dispensing systems.

Addition Cure (Platinum-Catalyzed Silicone): platinum-catalyzed hydrosilylation proceeds at room temperature or modest heat (50–80°C) with no small-molecule by-products—the first-choice system for thermal adhesives and precision electronic potting. The principal technical challenge is platinum catalyst poisoning by phosphorus, sulfur, nitrogen, or tin compounds, requiring strict material compatibility management.

1.4　Market Scale and Growth Drivers

China's adhesives and sealants market reached approximately RMB 151.8 billion in 2024 (+6.3% YoY), with volume of approximately 8.6 million tonnes (+~4% YoY). Building adhesives account for about 26% of volume; industrial and other applications account for 74%—the continued shift toward industrial use is the key differentiator from architectural coatings.

Five-year CAGR is 4–7%, markedly outpacing architectural coatings (essentially flat to slightly declining), driven by three structural forces:

First, NEVs demand far more adhesives than conventional vehicles. NEV per-vehicle adhesive content is approximately 18–25 kg versus ~8 kg for a combustion vehicle—2–3× more, and skewed toward high-value categories (structural, thermal, conductive). China's 2024 NEV output of 12.89 million units implies incremental adhesive demand of approximately 100–150 kt/year from this downstream alone, worth close to RMB 20 billion.

Second, photovoltaic and wind power installations generate strong demand for sealants and structural adhesives. China's 2024 solar additions of approximately 330 GW translate—at 1,200–1,500 tonnes of adhesive per GW—to roughly 400–500 kt/year of adhesive consumption from PV alone, with high visibility as installation scale remains elevated. Global wind-blade structural adhesive market reached approximately USD 470 million in 2024, with China holding ~40% share.

Third, precision 3C electronics assembly is lifting functional adhesive unit values. Smartphone OCA use is gram-scale but rising as foldable penetration grows; automotive display area expands; AR/VR optical components commercialize. The OCA optical adhesive sub-market reached approximately RMB 10.6 billion in 2024 (+13% YoY)—more than double the industry average growth rate.

Chapter 2　Global Landscape and China's Position

2.1　Global Market and Regional Distribution

Global adhesives and sealants market size is approximately USD 60–70 billion by broad definition (including sealants), with CAGR of ~5–8% through 2034. Asia-Pacific is the largest consuming region, accounting for 40–45% of global demand; China represents approximately 50–55% of Asia-Pacific, or about 22–25% of global industrial adhesives consumption.

2.2　The Six Global Giants

The global industrial adhesives market is dominated by six multinational conglomerates that collectively account for approximately 55–65% of global revenue.

Henkel (Germany; Adhesive Technologies division ~EUR 11 billion in 2024 revenue) is the global market leader. Its LOCTITE, Terokal, and Technomelt brand portfolios cover structural, thread-locking, and hot-melt adhesives across automotive, electronics, and general industrial markets. Henkel's Chinese manufacturing base spans Shanghai, Chongqing, and Guangzhou, serving China's domestic market while leveraging cost advantages.

3M (USA; Industrial adhesives revenue ~USD 4–5 billion/year from its Safety & Industrial segment) is the global OCA leader and holds dominant positions in acrylic structural, aerospace, and specialty adhesives. 3M's China adhesives business is primarily focused on high-value markets (OCA, automotive, specialty) and benefits from its integrated research and manufacturing infrastructure.

H.B. Fuller (USA; ~USD 3.5 billion revenue) leads in packaging and hygiene hot-melt adhesives globally.

Dow / DDP Specialty Electronic Materials (USA) leads in silicone sealants and encapsulants for electronics and automotive.

Sika (Switzerland) dominates construction and automotive adhesive sealants globally and has been expanding aggressively in China through the acquisition of local players.

Bostik (Total Energies) (France) is strong in hygiene, packaging, and construction hot-melt adhesives.

2.3　China's Competitive Position in the Global Value Chain

China occupies a split position in the global adhesives value chain: dominant in volume and increasingly competitive in technology for commodity segments; still catching up in high-specification industrial and specialty adhesives.

In building silicone sealants, China's domestic players have effectively displaced multinationals; in photovoltaic sealants, domestic firms have achieved 80–85% localization in five years. In lithium-battery thermal adhesives, domestic penetration rose from ~15% in 2021 to ~35–40% by 2024, with further acceleration expected. But in automotive body-in-white (BIW) structural adhesives, premium OCA, and aerospace structural bonding, China remains substantially import-dependent.

The structural reason: foreign incumbents hold decades of application engineering data (crash test data, durability field data across hundreds of vehicle programs) that cannot be replicated by formulation alone—it requires co-development cycles with OEM customers. Chinese companies are now actively co-developing with NEV-native OEMs (NIO, Li Auto, Xiaomi Auto), which moves the clock faster because these brands are less locked into decades-old supplier specifications.

Chapter 3　Core Chemical Systems

3.1　Silicone Adhesives: The Dominant System

Silicone adhesives are the largest chemical system in China's adhesives market by volume (~30–35% of total), driven by the ubiquity of building silicone sealants and photovoltaic encapsulants. The silicone backbone (Si–O bond, bond energy ~450 kJ/mol) delivers outstanding weatherability (UV, ozone, moisture resistance), broad temperature range (–60°C to 250°C), and excellent electrical insulation—properties that make it irreplaceable for outdoor architectural and new-energy applications.

RTV (Room-Temperature Vulcanization) Silicone Sealants cure via moisture condensation (acetic acid or oxime by-products in acetic/oxime-cure systems) or via a two-component platinum-catalyzed addition reaction. Acetoxy systems are the lowest-cost and most widely used for general building and consumer applications; neutral-cure (oxime or alkoxy) systems dominate in engineering-grade applications where corrosion of metal or electronic components is a concern.

Addition-Cure Silicone for Electronics: electronics-grade and thermal adhesive silicone systems cure via platinum-catalyzed hydrosilylation with no by-products, enabling use in hermetically sealed electronic assemblies. These systems carry the highest technical complexity and margins in the silicone adhesives market.

Silicone market China dynamics: domestic players (Guibao Technology, Huitian New Materials, Guangzhou Baiyun Chemical, Zhijiang Silicone) have effectively localized the building sealant tier. The frontier is shifting to electronics-grade and thermal-interface silicone, where formulation know-how and platinum catalyst management are the key differentiators. Key raw material: dimethyldichlorosilane monomer, produced in China primarily by Elkem Bluestar, Wynca Group, and Hoshine Silicon Industry—all domestic, providing supply chain security for the silicone adhesive industry.

3.2　Polyurethane Adhesives

Polyurethane (PU) adhesives are the second-largest system in China (~20–25% of volume), valued for their balance of flexibility, chemical resistance, and adhesion breadth across substrates. Core raw materials: MDI (methylene diphenyl diisocyanate) and polyols (polyether or polyester). Wanhua Chemical (600309) is the dominant domestic MDI producer with ~30 million tonnes/year capacity and ~28–30% global market share, providing Chinese PU adhesive manufacturers with cost advantages over peers in other geographies.

Key PU adhesive sub-segments:

  • PU windshield bonding sealants (automotive glass sealants): single-component moisture-cure systems; the world's most demanding weatherability standard for sealants. Henkel (Terostat), Sika (Sikaflex), and Dow (BETASEAL) dominate, but domestic firms (Zhijiang, Huitian) have captured mid-tier volume.
  • PU structural adhesives for wind blades: Siemens Gamesa-qualified adhesive systems for blade root and shear web bonding. Domestic specialists (Daosheng Tianhe, a pre-IPO candidate) have gained significant share in China's onshore wind market.
  • Reactive PU hot-melt adhesives (PUR): fast-cure, high-performance hot-melt for furniture edge-banding, textile lamination, and automotive interior substrates.

3.3　Epoxy Adhesives

Epoxy adhesives combine the highest shear strength (up to 60+ MPa for aerospace-grade), excellent chemical resistance, and dimensional stability after cure—making them the adhesive of choice wherever mechanical performance is paramount. The core chemistry: epoxide ring-opening polymerization initiated by amine, anhydride, or imidazole curing agents.

Single-component heat-cure epoxy systems (latent curing agents) are the dominant technology for automotive BIW structural adhesives, where factory ovens at 150–180°C provide a controlled cure environment. Two-component room-temperature-cure epoxies are used for field repairs, aerospace composite bonding, and general structural bonding where heat is unavailable.

Henkel's Terokal product family is the global and Chinese market leader for automotive BIW structural epoxies, with decades of crash safety data and OEM qualification records that represent a near-impenetrable moat for new entrants. Domestic challengers (Huitian, Kangda New Materials, Jietai Shares) are actively seeking their first NEV OEM qualification—expected around 2026–2027 based on current development timelines.

3.4　Acrylic and UV-Cure Adhesives

Acrylic-based adhesives encompass a wide range: pressure-sensitive adhesives (PSA, the backbone of industrial tapes and labels), methyl methacrylate (MMA) structural adhesives (SGA), UV-cure liquid adhesives for electronics bonding, and OCA optical adhesive films.

MMA structural adhesives (SGA) offer a compelling combination of high strength (15–25 MPa) and tolerance of surface contamination (oily or lightly oxidized surfaces)—making them attractive for automotive and marine composite bonding where surface prep is impractical. Henkel Plexus and ITW Plexus are the market leaders; domestic equivalents (produced by Kangda, Huitian) are advancing.

UV-cure adhesives for electronics bonding: rapid cure (1–30 seconds under UV lamp), high optical clarity, excellent adhesion to glass and polycarbonate. Used in smartphone camera module bonding, fingerprint sensor attachment, and display frame sealing. Domestic players (Hangzhou First Applied Materials, Suzhou Crystal Clear Chemical) have made inroads in mid-tier consumer electronics; premium smartphone OEM supply remains largely international-brand territory.

OCA optical adhesive films: the most demanding acrylic sub-segment. OCA must deliver >99% transmittance, <1% haze, <0.1 MPa stress, and dimensional stability under thermal cycling. 3M and Nitto Denko (Japan) jointly hold approximately 65–75% of the global OCA market for premium smartphone applications; domestic firms are targeting the display repair aftermarket and automotive display sector as entry points.

3.5　Other Systems: Anaerobic, Hot Melt, Modified Silane

Anaerobic threadlockers and pipe sealants (anaerobic adhesives): Loctite (Henkel) is the global and Chinese market leader with ~55–65% global share; domestic brands (Permabond equivalent products from Haida, Lianbang) have captured smaller industrial maintenance segments.

Hot-melt adhesives (hot melt): ethylene-vinyl acetate (EVA), polyamide (PA), and reactive PUR hot melts for packaging, bookbinding, hygiene products, furniture, and textile lamination. H.B. Fuller, Bostik, Henkel, and Savare are the global leaders; China has strong domestic production in EVA and PA hot-melt systems.

Modified silane (MS polymer) sealants (modified silane adhesives): silyl-terminated polyether or polyurethane systems that combine silicone weatherability with PU paintability. Absence of isocyanates (safer for workers) and excellent adhesion to diverse substrates drive adoption in prefabricated building, automotive assembly sealants, and outdoor energy storage enclosures. The MS polymer market in China is growing at ~15–20% annually, outpacing overall adhesives growth.

Chapter 4　Industry Value Chain

4.1　Upstream Raw Materials and Supply Bottlenecks

The industrial adhesives supply chain begins with petrochemical and silicone-chemistry raw materials:

  • Silicone monomers (dimethyldichlorosilane): predominantly domestically produced; major suppliers Hoshine Silicon Industry, Wynca Group, Xingfa Group provide supply security.
  • MDI (for PU adhesives): Wanhua Chemical commands ~28–30% global market share; domestic supply is secure and competitively priced.
  • Bisphenol A epoxy resin (for epoxy adhesives): China has strong domestic production (Nanya Plastics, Sinopec); import dependency is low.
  • Acrylic acid and acrylate esters (for acrylic adhesives, OCA, PSA): satellite Chemical (002648) is China's largest producer, providing competitive raw material pricing for domestic acrylic adhesive manufacturers.
  • Photoinitiators (for UV-cure systems): IGM Resins (Netherlands) and Tianjin Jiuri Chemical (China) are leading suppliers; China has significant domestic capacity.
  • Platinum catalysts (for addition-cure silicone): platinum group metals (PGMs) are imported primarily from South Africa and Russia; domestic refining exists but is limited. Catalyst cost (~RMB 300–500/gram of platinum) is a significant input for high-performance thermal adhesives and electronics-grade silicone.
  • Thermal conductive fillers (aluminum oxide, boron nitride): aluminum oxide is fully domestically available; hexagonal boron nitride (h-BN), the premium filler for ultra-high thermal conductivity (>5 W/m·K) applications, remains import-dependent (~60–70% from Japan's Denka and US-based suppliers), representing the key raw material bottleneck for premium domestic thermal adhesives.

4.2　Midstream: Formulation, Manufacturing, and Quality Control

Industrial adhesive formulation is the core value-creation step: selecting base polymer, crosslinker, filler, catalyst, adhesion promoter (silane coupling agent), plasticizer, and stabilizer—and tuning their ratios to hit a multi-dimensional property target (viscosity, open time, cure rate, strength, durability, compatibility). This know-how is protected by trade secrets rather than patents in most cases; a leading industrial adhesive formulation can take 5–10 years of iterative application testing to mature.

Manufacturing for most adhesives is relatively capital-light (mixing, filling, packaging equipment) compared to chemical production—but quality control infrastructure (rheometer, tensile/shear test apparatus, environmental aging chambers) is capital-intensive for high-spec producers. The key manufacturing challenge for high-filler systems (thermal adhesives with 80%+ filler loading) is maintaining a stable, low-void, uniformly dispersed dispersion—requiring specialized high-speed dispersers and vacuum de-airing systems.

4.3　Downstream: Who Buys What

  • Construction and real estate: largest volume sector; primarily silicone sealants, PU windshield, MS polymer. Market softness in 2023–2024 has been partially offset by growth in prefabricated buildings.
  • Automotive (conventional): PU windshield bonding, under-body sealant, hem-flange epoxy structural adhesive, vibration dampening pads. Stable demand.
  • New-energy vehicles: battery pack thermal adhesive, structural cell adhesive (CTP/CTB), battery-to-body bonding adhesive, motor potting compound. Fastest-growing downstream, 2× the per-vehicle adhesive content.
  • Photovoltaics: module edge silicone sealant, junction box potting, backsheet lamination. Directly correlated to annual installation volume.
  • Wind energy: blade root and shear-web structural adhesive (epoxy/PU), tower anti-corrosion sealant. Highly sensitive to onshore/offshore project mix.
  • 3C Electronics: UV adhesive, conductive adhesive, optical adhesive (OCA/OCR), EMI shielding gasket sealant.
  • Aerospace and rail: ultra-high-spec structural adhesives; heavy on certification requirements; extremely high barriers to domestic substitution.

Chapter 5　Downstream Application Markets

5.1　Architectural and Construction: The Volume Backbone

China's construction sector remains the largest single end-market for industrial adhesives by volume, representing approximately 26% of total adhesive consumption in 2024. Despite the real estate downturn (2023–2024), infrastructure construction (transportation, energy) and prefabricated building have partially compensated. The dominant product in this segment is building silicone sealant, used extensively in curtain-wall systems, weatherproofing joints, and interior decoration. Domestic brands have essentially completed the import substitution cycle in this segment: Baiyun Chemical (广州白云), Guibao Technology, Zhijiang Silicone, and others have collectively displaced multinationals from all but the most technically demanding engineering projects (ultra-high-rise curtain walls with >50-year durability specifications). Key national standard reference for silicone sealants is the national standard covering construction sealant performance (national standard 14683 series for silicone building sealants).

5.2　New-Energy Vehicles: The High-Value Growth Frontier

NEVs are the fastest-growing and highest-value-per-tonne downstream for industrial adhesives. The shift from conventional to electric architecture fundamentally changes adhesive requirements:

  • Battery pack assembly: CTP (cell-to-pack) and CTB (cell-to-body) architectures glue cells directly to the pack structure, eliminating traditional module frameworks and dramatically increasing structural and thermal adhesive consumption per vehicle. A CTP pack using thermal conductive adhesive for cell-to-cooling-plate bonding requires 8–15 kg of thermal adhesive alone.
  • BIW structural adhesives: automotive structural adhesives for body-in-white (hem flange, roof joint, pillar reinforcement) determine vehicle crash safety performance. Single-component heat-cure epoxy dominates.
  • Motor and inverter encapsulation: potting compounds protect VCU, BMS, and on-board charger electronics.

The premium segment (BIW structural adhesive for mainstream OEMs) remains Henkel-dominated, but the NEV-native brands (NIO, BYD, Li Auto, Xiaomi Auto) represent an opportunity for domestic challengers to grow a qualification track without displacing a decades-long incumbent relationship.

5.3　Photovoltaic Modules: Scale and Localization Success

The photovoltaic sealant market is one of the clearest domestic localization success stories. China's 2024 PV installations of ~330 GW drive a massive recurring demand for module edge sealing (silicone), junction box potting (silicone/PU), and mounting system structural adhesive. Domestic companies—led by Guibao Technology, Huitian, and newcomers like Hopson New Materials—have captured ~80–85% of this market by offering technically compliant products at 60–70% of multinational pricing, supported by fast domestic logistics and dedicated technical service teams.

5.4　Wind Energy: High-Performance Blade Adhesives

Wind turbine blade structural adhesive is one of the most demanding segments in the adhesive industry. Blade lengths have reached 100–120 meters for offshore turbines; a single blade requires 200–500 kg of wind blade adhesive for root connection and shear-web bonding. The adhesive must survive 20+ years of fatigue loading, temperature cycling, and moisture exposure. Daosheng Tianhe (道生天合, pre-IPO) is the leading domestic challenger, having gained significant share in onshore wind from Hexion (formerly Momentive). Offshore wind represents the next frontier—with stricter specifications that domestic players are still qualifying against.

5.5　Consumer Electronics: OCA and UV Adhesives

The consumer electronics downstream drives demand for the most technically sophisticated adhesive products. OCA optical adhesive lamination is required at every level of the display stack: cover glass to touch sensor, touch sensor to display panel. A single smartphone screen lamination consumes 8–25 grams of OCA film. The global OCA market for smartphones (USD 2 billion), tablets (USD 0.5 billion), and emerging automotive displays (~USD 0.8 billion and growing rapidly) is dominated by 3M and Nitto. Domestic firms (Sunnypol, Truly International, Optivance) have made inroads in the display repair aftermarket and PC/tablet applications.

Chapter 6　Key Market Players

6.1　Domestic Leaders: Profiles and Financial Performance

Huitian New Materials (回天新材, 300041): The largest diversified domestic adhesive company by revenue. 2024 revenue: RMB 3.989 billion (+2.2%); adhesive revenue: RMB 3.554 billion (+15.3%). Product portfolio spans epoxy structural adhesives, silicone potting, PU assembly adhesives, thermal interface materials, and UV adhesives—covering automotive, PV, wind, electronics, and rail. Wuhan-based, with manufacturing in Hubei, Jiangsu, and Guangdong. Currently pursuing automotive BIW structural adhesive qualification with NEV-native OEMs.

Guibao Technology (硅宝科技, 300019): China's largest silicone sealant specialist. 2024 revenue: RMB 3.159 billion (+21.2%); sealant volume: 245,100 tonnes. Sichuan-based, leveraging proximity to Sichuan Silicon (low-cost monomer supply). Strong in building and photovoltaic sealants, with a growing new-energy portfolio (EV battery sealant, storage system sealant). Overseas revenue exceeded RMB 400 million in 2024 (+~30%), primarily Southeast Asia and Middle East.

Jietai Shares (集泰股份, 002909): Listed (2017), headquartered in Guangzhou. Specializes in silicone and MS polymer building sealants, with a growing automotive sealant line. 2023 revenue ~RMB 2 billion. Actively developing modified silane adhesives for automotive and prefabricated building applications.

Jinghua New Materials (晶华新材, 603683): Wuhan-based, listed 2022. Specializes in EVA photovoltaic encapsulant films and is expanding into thermal interface adhesives for energy storage. A RMB 1 billion expansion project is under planning. Revenue ~RMB 1.5 billion (2023 estimate).

Gaomeng New Materials (高盟新材, 300200): Specializes in PU hot-melt and laminating adhesives for flexible packaging and automotive interior materials. Revenue ~RMB 1.5 billion.

Kangda New Materials (康达新材, 002669): Aerospace-qualified adhesives (the only A-share company with COMAC supply qualification), plus UV adhesives and industrial epoxies. Revenue ~RMB 1.5 billion. The COMAC aerospace qualification is a unique strategic asset with high barriers to replication.

6.2　Multinationals with Strong China Presence

Henkel China: The dominant foreign player in industrial adhesives, with revenues estimated at USD 1.5–2 billion from China adhesives operations. Key product lines: LOCTITE (industrial maintenance, threadlockers), Terokal/Terostat (automotive BIW and glass), Technomelt (hot melt). Five manufacturing locations in China. The incumbent supplier for virtually all major domestic and joint-venture automotive OEMs' BIW adhesive programs.

3M China: OCA market leader in premium smartphones; also strong in specialty tapes, automotive, and construction adhesives. Estimated USD 0.5–1 billion in China adhesives revenue. Benefits from global R&D and a trusted premium brand.

Dow (Specialty Coatings & Sealants): Leading supplier of silicone sealants and encapsulants for electronics and PV. Has faced growing domestic competition in PV sealants but maintains premium positioning in electronics-grade products.

Sika China: Strong in construction (concrete admixtures + sealants) and automotive glass bonding. Has made acquisitions (Parasilico, Crevo) to strengthen its China adhesives portfolio.

Chapter 7　Domestic Substitution Segment Map and Tianxia Gongchang Database Insights

7.1　Sub-Segment Localization Status Matrix

The pace and depth of domestic substitution varies sharply by sub-segment. Based on Tianxia Gongchang's database of 480 million factory records and public data from listed companies:

Sub-segment Domestic penetration (2024 est.) Key domestic players Primary substitution barrier
Building silicone sealant ~95% Baiyun, Guibao, Zhijiang None — fully localized
PV silicone sealant ~80–85% Guibao, Huitian, Hopson None remaining for mainstream
Wind blade structural adhesive ~55–65% (onshore) Daosheng, Huitian Offshore certification
Lithium-battery thermal adhesive ~35–40% Huitian, Dow Corning JV h-BN filler import dependence
Industrial hot-melt ~50–60% Gaomeng, Kangda, Huitian High-end hygiene/automotive
Automotive glass PU sealant ~40–50% Zhijiang, Huitian, Kangda OEM homologation time
Anaerobic adhesive ~30–40% Haida, Lianbang Brand trust in MRO channel
Automotive BIW structural epoxy ~20–25% Huitian, Kangda 2+ year qualification cycle
UV adhesive (electronics) ~35–45% Jietai, specialized UV firms OLED/folding spec gap
OCA optical adhesive ~15–25% Sunnypol, emerging firms Precision coating equipment
ACF (anisotropic conductive film) ~5–10% Minimal domestic presence Advanced packaging know-how
Aerospace structural adhesive ~10–15% Kangda (COMAC) Military/civil certification

7.2　Geographic Clustering of Domestic Adhesive Factories

The Tianxia Gongchang research database reveals strong geographic concentration of China's active adhesive manufacturing base:

  • Yangtze River Delta (Jiangsu, Zhejiang, Shanghai): ~35% of domestic factories, concentration in UV adhesives, electronics-grade silicone, specialty PU.
  • Pearl River Delta (Guangdong): ~28%, concentration in building sealants, hot melt, pressure-sensitive adhesives.
  • Hubei/Central China (led by Wuhan): ~10%, anchored by Huitian New Materials and its supply chain ecosystem.
  • Sichuan/Southwest: ~8%, driven by Guibao Technology's silicone cluster and proximity to silicon monomer producers.
  • North China (Shandong, Tianjin, Beijing): ~10%, mix of industrial maintenance adhesives, construction sealants, and aerospace-adjacent suppliers.

7.3　Substitution Acceleration Signals

The research database tracks several leading indicators that suggest domestic substitution is accelerating beyond linear extrapolation:

  1. New-factory count in thermal adhesives: active factories producing thermal conductive adhesives grew ~40% between 2022 and 2024, compared to ~12% for the overall adhesives sector—indicating capital allocation is concentrating here.
  2. Cross-industry entrants: companies from adjacent materials industries (silicone mid-stream, epoxy resin formulating, carbon materials) are entering specialty adhesive segments, bringing fresh formulation capabilities and chemical know-how.
  3. Co-development mandates from NEV OEMs: multiple domestically founded NEV brands have explicit policies to prefer domestic Tier-1 suppliers over foreign incumbents, creating a structural demand pull that did not exist for conventional automotive OEMs.

Chapter 8　Pricing and Business Models

8.1　Price Band Structure

Industrial adhesives span an enormous price range driven by formulation complexity, performance level, and competitive intensity:

  • Commodity silicone building sealant: RMB 8,000–15,000/tonne ($1.1–2.1/kg)—highly competitive, margin-thin.
  • PV module silicone sealant: RMB 12,000–22,000/tonne—slightly better margin due to certification requirements.
  • PU hot-melt adhesive: RMB 15,000–35,000/tonne depending on performance grade.
  • Automotive BIW structural epoxy: RMB 40,000–120,000/tonne—significant premium due to OEM qualification and performance specs.
  • Thermal conductive adhesive (battery grade): RMB 50,000–200,000/tonne depending on thermal conductivity level; premium grades (>5 W/m·K with h-BN) can exceed RMB 300,000/tonne.
  • OCA optical adhesive film: RMB 500–2,000/square meter for premium grades, translating to RMB 2–10 million/tonne equivalent—the highest value-density segment.
  • Anaerobic threadlocker (Loctite): retail pricing of RMB 200–800/unit (50–250 ml), but bulk industrial pricing is negotiated.

8.2　Business Models and Go-to-Market Strategies

Industrial adhesive companies operate under several distinct business model archetypes:

Product-led direct sales (the model for Henkel, 3M): build premium brand and product library, sell through direct technical sales force and distributor network, charge 20–40% premium over domestic alternatives, justify premium via application engineering support and liability warranty.

Solution bundling (the model emerging among Chinese champions): combine adhesive product with dispensing equipment supply, application engineering support, and digital quality traceability—moving from selling material to selling the entire bonding process outcome. This is Huitian's explicit strategy for battery adhesive.

Domestic niche dominance (the model of Kangda, Daosheng): find a defensible niche with high certification barriers (aerospace COMAC, offshore wind), invest the multi-year qualification cost to establish a near-captive position, price at a significant premium to the commodity market.

Channel-driven volume play (the model of Guibao, Zhijiang): build massive distribution depth in the construction sealant channel (hardware stores, builders' merchants, architectural specification channels), drive volume through cost leadership and local service, compete on price and supply reliability.

Chapter 9　Representative Customer Case Studies

9.1　CATL (宁德时代) Battery Pack Thermal Adhesive: National Localization Case

CATL's thermal management adhesive sourcing strategy is the most closely watched localization program in China's industrial adhesives sector. As of 2022, CATL's CTP packs relied heavily on Dow Corning (now Dow) silicone thermal adhesives for cell-to-cooling-plate bonding—imported or produced at Dow's China JV facilities. By 2024, following an aggressive domestic supplier development campaign (initiated jointly with Huitian New Materials and another domestic specialist), the domestic share of CATL's thermal adhesive supply had risen to approximately 40–50% across product lines. The lever was CATL's enormous purchasing volume (a single GWh of CTP battery requires ~80–120 tonnes of thermal adhesive), which justified substantial co-development investment by domestic suppliers.

9.2　BYD (比亚迪) Blade Battery Structural Adhesive Integration

BYD's Blade Battery design uses structural adhesive to directly bond individual blade cells to the battery pack tray—eliminating module housings and making the adhesive bond a structural member. The adhesive layer must simultaneously provide >5 MPa shear strength (structural function), >2 W/m·K thermal conductivity (thermal management function), and chemical compatibility with the electrolyte (safety function). BYD's specification is among the most demanding for any battery adhesive application globally, and the qualification process for suppliers takes 18–24 months of testing including nail penetration, thermal runaway, and 2000+ cycle durability tests.

9.3　Longi Green Energy (隆基绿能) PV Module: Domestic Sealant Full Transition

By 2023, Longi's high-efficiency HJT module production line had transitioned to 100% domestic silicone sealants (primarily from Guibao Technology), replacing previously dual-sourced foreign/domestic supply. The transition was driven by a combination of: (a) Guibao reaching technical parity on durability (5000-hour UV aging, damp-heat 1000-hour tests) and (b) Guibao providing dedicated technical support engineers at Longi's production facilities—a level of service customization that multinationals were unable to match at the same cost level.

Chapter 10　Investment, Financing and M&A

10.1　Sector Valuation Landscape

China's listed industrial adhesive companies are valued at 15–30× P/E for leading companies with strong growth trajectories, reflecting the market's recognition of the sector's structural tailwinds (NEV, PV, localization premium). Huitian New Materials trades at approximately 20–28× forward P/E; Guibao Technology at approximately 18–25×. These valuations are at a modest discount to global specialty chemical peers (Henkel's adhesives division implied at ~18–22× EBITDA), which is unusual given their higher revenue growth rates—suggesting either structural discount for China domestic equities or market skepticism about margin sustainability.

10.2　Key Transactions and Strategic M&A

Sika's China acquisitions: Sika has pursued an aggressive M&A strategy in China's construction adhesive and sealant market, acquiring several smaller domestic companies to build distribution depth and technical capacity. This represents a model of "buy domestic distribution, add Sika product portfolio" that international players are using to circumvent the organic development challenge.

Kangda New Materials' aerospace positioning: Kangda's strategic decision to pursue and maintain COMAC qualification (at significant cost and management attention) has created a moat that other domestic adhesive companies have not replicated—effectively positioning it as the only A-share company with a credible aerospace structural adhesive business in China.

Daosheng Tianhe's IPO trajectory: The wind-blade adhesive specialist has been navigating the A-share IPO process as of 2024–2025, seeking to monetize its leading domestic position in a growing niche. The IPO valuation (~RMB 1.5–2.5 billion estimated) and its resolution will set a reference for how the capital market values specialty domestic adhesive companies.

Chapter 11　Policy and Standards

11.1　Domestic Standards and Regulatory Framework

China's industrial adhesives standards system encompasses both mandatory national standards (performance, safety, environmental) and voluntary technical specifications for specific application sectors. The construction silicone sealant category, for example, is governed by the national standard for building sealants performance (the national standard 14683 series for silicone building sealants covering two-component neutral cure systems), which specifies minimum tensile adhesion, compression recovery, and weathering resistance. Building adhesives used in structural applications are also subject to the general requirements for structural adhesives (the structural adhesive national standard series), which covers minimum shear strength and durability for bonded structural elements.

For new-energy applications, the relevant standards ecosystem is still being built. CATL and BYD effectively set de-facto specifications through their supplier qualification requirements; formal national standards for EV battery adhesives and thermal management materials are under development by the Chinese Association of Automobile Manufacturers (CAAM) and the China National Institute of Standardization.

11.2　Environmental and VOC Regulations

China's VOC emission regulations (introduced via the "Blue Sky" action plan and tightened progressively since 2020) have accelerated the transition from solvent-borne to water-borne and UV-cure adhesive systems in segments such as woodworking, footwear, and general industrial bonding. The new-construction sealant segment has largely shifted to low-VOC silicone and MS polymer systems. More stringent regulations are expected in the 2026–2030 period, particularly for automotive interior adhesives (where formaldehyde and VOC limits are increasingly under regulatory attention).

11.3　Domestic Production Policy Support

The adhesives sector benefits from two broad strands of industrial policy support: first, as a direct beneficiary of NEV and renewable energy sector mandates (demand pull); second, as a recipient of "new materials" industrial policy (supply push). Several provincial governments (Hubei for Huitian New Materials, Sichuan for Guibao Technology, Shanghai for specialty chemical clusters) have provided factory investment subsidies and land grants for capacity expansion in strategic adhesive categories.

Chapter 12　Trends and Tianxia Gongchang Research Team Outlook

12.1　Five Core Trends Reshaping the Industry (2026–2030)

Trend 1: Thermal adhesive replaces mechanical fastening in battery manufacturing. The shift from modular to cell-to-pack battery architecture will continue to drive adhesive content expansion. By 2030, the research team projects NEV per-vehicle thermal adhesive content will reach 12–20 kg/vehicle (vs. 5–8 kg in 2023), and total China market demand for battery thermal adhesives will approach RMB 15–20 billion—growing from approximately RMB 4 billion in 2024. This is the single most important secular growth driver in the adhesive sector.

Trend 2: OCA localization inflection. With domestic display makers (BOE, CSOT) and automotive display suppliers actively seeking domestic OCA supply chains, and with domestic firms reaching initial technical qualification in mid-tier applications (tablet, PC monitor), the OCA localization trajectory is set to steepen. The research team's base case: domestic OCA penetration in non-flagship-smartphone applications rises from ~15–20% in 2024 to ~35–45% by 2028.

Trend 3: MS polymer as the third-generation construction sealant. Modified silane polymer sealants are positioned to take significant share from both silicone (in applications where paintability is needed) and PU (in applications where isocyanate exposure risk is a concern). Adoption in prefabricated building is particularly strong: factory-applied sealants in modular construction require the overpaintable, VOC-free profile that MS polymers deliver.

Trend 4: Automotive BIW structural adhesive is the final frontier. This is the last large-volume, high-value segment where foreign companies maintain dominant control. The research team expects a domestic player to achieve first qualification at a mainstream Chinese OEM (including NEV-native) by 2026–2027, which will open the floodgates for rapid share gain thereafter. The qualification track is long (2–3 years) but the market is large (estimated RMB 8–12 billion in China by 2025).

Trend 5: Digitalization of adhesive dispensing and quality traceability. The integration of dispensing equipment, in-line weight/flow control, and MES data connectivity is transforming adhesive application from an art to an engineering process. Suppliers who can offer "adhesive + equipment + digital quality traceability" as a bundled solution will command both higher revenue per account and stronger customer retention.

12.2　Research Team Outlook for 2026 and Beyond

The Tianxia Gongchang research team's view on China's industrial adhesives industry can be summarized in three sentences:

The new-energy transition is a structural multi-decade driver that will more than compensate for any cyclical weakness in the construction adhesive market. The volume of high-value adhesives demanded by EV batteries, solar modules, and wind turbines is growing faster than the entire traditional adhesives market has grown in the past decade.

Domestic localization has passed the point of no return in commodity segments and is visibly accelerating in specialty segments. The capital, talent, and institutional knowledge now embedded in domestic adhesive companies (Huitian, Guibao, Jinghua, Kangda, Daosheng) create compounding returns on their localization programs—each qualification win opens the door to the next one.

The remaining foreign incumbency in BIW structural adhesives, OCA, and ACF represents a decreasing but still substantial commercial opportunity for domestic challengers—and a gradually eroding moat for multinationals. The question is not if but when domestic firms break into these segments; based on current development timelines, "when" is 2026–2028 for BIW structural adhesive and 2027–2030 for premium OCA.

Chapter 13　Risk Factors

13.1　Raw Material and Supply Chain Risks

  • Boron nitride (h-BN) import dependency: premium thermal adhesives rely on h-BN from Japan (Denka) and the US; geopolitical disruptions or export restrictions could constrain domestic production of high-end thermal adhesives.
  • Silicone monomer price volatility: as documented in Chapter 3, organic silicone monomer prices have been highly cyclical; any rapid recovery in monomer prices will compress sealant company margins temporarily before they can pass through to customers.
  • Platinum group metal supply: used in addition-cure silicone catalysts; supply is heavily concentrated in South Africa and Russia. Price spikes or supply disruption directly impact cost of premium silicone adhesives.

13.2　Technology Disruption Risks

  • Solid-state battery transition: if solid-state batteries achieve commercial scale by 2028–2030 (optimistic scenario), the thermal management approach changes fundamentally, potentially reducing demand for liquid/gel thermal adhesives and creating new demand for solid-state thermal interface materials (TIMs).
  • In-mold bonding (direct part-to-part bonding in injection molding): emerging technologies that integrate surface treatment and adhesive bonding within the molding cycle could reduce post-process adhesive consumption in certain 3C applications.
  • Laser welding replacing adhesive bonding: in some battery module designs, laser welding of current collectors is replacing bonded interconnects; this could marginally reduce conductive adhesive demand in certain packaging architectures.

13.3　Competitive and Market Risks

  • Foreign incumbent pricing retaliation: Henkel and 3M could respond to domestic market share loss by aggressively cutting prices in segments where they face credible domestic competition, compressing the value-gap that domestic firms rely on for their cost-performance positioning.
  • Overcapacity risk in commodity segments: the building silicone sealant market is already showing signs of overcapacity-driven price erosion; continued capacity additions by domestic players in the absence of demand growth could trigger destructive price competition.
  • OEM single-source risk for domestic suppliers: if a domestic adhesive supplier gains a significant single-customer concentration (e.g., >25% of revenue from one OEM), any change in that OEM's sourcing strategy creates material revenue risk.

13.4　Regulatory and ESG Risks

  • VOC and environmental regulations: tighter VOC standards could require significant reformulation investment for domestic producers with legacy solvent-borne product lines.
  • REACH and export compliance: domestic firms seeking European market entry must navigate REACH registration (cost: EUR 50,000–500,000 per substance) and conform to evolving substance restrictions.
  • Carbon border adjustment: the EU's Carbon Border Adjustment Mechanism (CBAM) may indirectly affect Chinese adhesive exports if carbon-intensive production processes (associated with high-temperature cure systems or energy-intensive silicone monomer production) are not offset by carbon credits.

Data Sources

This report draws on publicly available data and the Tianxia Gongchang (www.tianxiagongchang.com) factory database, which covers more than 4.8 million active manufacturing enterprises in China. The key sources consulted include:

  1. Listed company annual reports (2023–2024): Huitian New Materials (300041), Guibao Technology (300019), Jietai Shares (002909), Jinghua New Materials (603683), Gaomeng New Materials (300200), Kangda New Materials (002669), Daosheng Tianhe (IPO prospectus).
  2. China Adhesives and Tapes Industry Association (CATIA): Annual Industry Development Report; industry volume and value statistics.
  3. China Photovoltaic Industry Association (CPIA): 2025 PV Industry Development Roadmap; module material volume estimates.
  4. Henkel AG Annual Report 2024: Adhesive Technologies division financial data and global market share estimates.
  5. MarketsandMarkets, Grand View Research, Mordor Intelligence: Global adhesives market size, CAGR, and regional breakdown estimates; used for triangulation; specific projections adjusted to reflect latest available data.
  6. China Customs General Administration: Trade data for adhesive product categories under HS Chapter 35 and relevant sub-chapters of Chapter 38 and 39.
  7. Bloomberg NEF / Wood Mackenzie: EV battery demand projections, PV installation forecasts; used for downstream demand modelling.
  8. Academic sources: peer-reviewed papers on adhesive failure analysis, platinum-catalyzed silicone cure mechanisms, and boron nitride filler dispersion, accessed via Chinese National Knowledge Infrastructure (CNKI) and Web of Science.
  9. Company and technology presentations: investor day materials from Huitian New Materials, Guibao Technology; white papers from Henkel, Dow, and 3M on automotive and battery adhesive applications.

Disclaimer: all market size figures, company financials, and penetration rate estimates in this report represent the research team's best estimates based on available public information as of June 2026. Actual results may differ materially. This report is for informational and research purposes only and does not constitute investment advice.