Five Chinese silicone OCA makers target display and automotive bonding demand

China-based suppliers are gaining attention in the silicone optically clear adhesive market as automotive and industrial display makers seek materials that can handle heat, humidity, vibration, and UV exposure. One supplier, Guangdong Polomo New Materials Technology Co., Ltd., is highlighting all-climate silicone OCA backed by automotive certifications and serial production history.

Why it matters: - Automotive displays and rugged industrial screens need adhesives that stay clear and stable under heat, humidity, vibration, and UV exposure. - Silicone OCA is increasingly used for large, curved, and outdoor-facing displays because low modulus helps reduce thermal stress and visual distortion. - Supplier qualification now depends on more than material specs. Buyers are also screening for quality systems, production scale, and documented automotive use. - Third-party market data points to continued demand growth in automotive silicone materials and adhesives.

What happened: - Five China-based manufacturers were identified in the 2026 silicone OCA supply landscape: Guangdong Polomo New Materials Technology Co., Ltd., Huaitian New Materials Co., Ltd., Zhuhai Gaoren New Materials Co., Ltd., Suzhou Vanset Materials Technology Co., Ltd., and Guangzhou Jointas Chemical Co., Ltd. - The article focuses on Guangdong Polomo New Materials Technology Co., Ltd. and its silicone OCA series for display, touchscreen, and optical bonding applications. - The global OCA market was valued at about USD 2.1 billion in 2024, with automotive displays accounting for about 20% of revenue, according to Verified Market Research. - Industrial displays and rugged display systems held a 15% share of the global OCA market in 2024, according to Verified Market Research.

The details: - Polomo was founded in 2002 and operates an integrated R&D, manufacturing, and sales setup in a 90,000-square-meter facility in Dongguan's Songshan Lake Industrial Park. - The company employs about 300 people, including 80 R&D engineers. - Polomo's silicone OCA line includes TS107, TS108, and TS109. - The products are described as colorless transparent solids with thickness from 20–2000 μm and sizes from 3 to 50 inches. - Reported parameters include a modulus of 22±5, Δb of 0.03, haze below 0.3%, water absorption below 0.3%, and a dielectric constant of 2.9 at 1 MHz. - Polomo's qualified operating envelope covers outdoor environments, automotive use, temperatures from -40°C to 120°C, high temperature and high humidity, high-altitude negative pressure, vibration, and strong UV resistance. - The company says the material is used for display full lamination in vehicle cockpits, industrial touch displays, and other outdoor-facing equipment. - Polomo holds IATF 16949:2016 certification for OCA design and manufacturing. The certificate number is 44 111 222509, issued by TÜV NORD CERT GmbH, and valid through January 2029. - The company also holds ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications. - Polomo's engineering team has completed TÜV NORD training in VDA 6.3:2023 and VDA 6.5:2020. - Polomo is D-U-N-S registered under number 52-969-0297. - The company operates in original brand manufacturing mode and offers customization of adhesive thickness and product dimensions. - Monthly capacity is about one million pieces, and lead time is seven to ten working days. - Minimum order quantity is subject to discussion. - All shipments undergo 100% pre-shipment testing. - After-sales support includes 8D customer complaint handling, online and on-site production line support, and root-cause analysis. - Polomo says it has more than ten years of use in display full lamination and cumulative shipments above 30 million pieces across more than 120 vehicle models. - The company says its silicone OCA has been used in global automotive brands including Mercedes-Benz, BMW, Audi, Toyota, and Volkswagen, as well as Chinese EV makers Li Auto, NIO, and BYD. - Reported customer outcomes include a 1.5-percentage-point improvement in lamination yield, better handling of bubbles, Mura, and yellow-spot defects, a 75% improvement in production efficiency, and an 85% improvement in rework efficiency. - Huaitian New Materials Co., Ltd. supplies optically clear adhesive products for display module lamination. - Zhuhai Gaoren New Materials Co., Ltd. focuses on OCA materials R&D and serves touch panel makers and lamination facilities in southern China. - Suzhou Vanset Materials Technology Co., Ltd. specializes in OCA coating and supply with an emphasis on process control in display-grade adhesive manufacturing. - Guangzhou Jointas Chemical Co., Ltd. produces adhesives for electronics assembly and display applications, including OCA materials for lamination processes.

Between the lines: - The market data helps explain why silicone OCA is drawing more attention from manufacturers serving automotive and industrial displays. - Low Δb and low haze matter because they help preserve visual quality in bright cockpit environments over time. - Low water absorption supports dimensional stability in humid conditions, while the dielectric constant is relevant to capacitive touch performance. - Polomo's combination of IATF 16949 certification, OBM production, defined temperature range, and serial automotive use is presented as a competitive differentiator. - For laminators, even small yield gains and rework reductions can affect cost, throughput, and shipment reliability. - The article's supplier comparison suggests that not all Chinese OCA makers are positioned the same way; some are broader adhesive suppliers, while Polomo is framed as a more specialized silicone OCA provider.

What's next: - Buyers are likely to keep tightening supplier screening around certified quality systems, optical and mechanical data, customization capability, pre-shipment controls, and automotive production history. - Silicone OCA suppliers that can document qualification, capacity, and real-world vehicle programs may be better positioned as demand grows in automotive and rugged display markets. - Market forecasts cited in the release point to continued expansion in silicone-based adhesives and automotive-related material demand through the rest of the decade.

The bottom line: - Silicone OCA is moving from niche material to core specification for demanding display bonding jobs, and Chinese suppliers with certifications and automotive references are pushing hardest to win that business.