Betely Self-Adhesive Silicone Rubber: Breaking the Limits of Conventional Bonding and Empowering Efficient Production Across Multiple Industries

2025-10-24 09:13

In numerous industries—including 3C electronics, new-energy vehicles, medical devices, and home‑building materials—the adhesion performance, process compatibility, and substrate suitability of silicone rubber directly determine the upper limit of product quality and production efficiency. Conventional silicone rubbers not only rely on primers, which increase costs and extend lead times, but also face limitations in application methods and substrate types, making it difficult to meet diverse manufacturing requirements.

As one of the earliest domestic companies to achieve localized production of self-adhesive silicone rubber, Betely has been deeply engaged in the specialty materials sector for over 20 years. Leveraging its first-mover technological edge and a wealth of real-world application experience, the company’s self-adhesive silicone rubber not only overcomes the limitations of conventional bonding but, with its core competitive advantages of “full-process compatibility + universal material adaptability,” has become the preferred benchmark for process upgrades across various industries.

Core of the product: Breaking with tradition, unlocking a new era of efficient bonding.

Bettley self-adhesive silicone rubber is a two-component, addition-cured, heat‑curing, semi‑transparent liquid silicone elastomer that addresses the pain points of conventional processes across all performance parameters and application scenarios:

● 1. Revolutionary primer-free technology: reduces costs, boosts efficiency, and is environmentally friendly

● No primer (surface treatment agent) is required, eliminating the need to procure, apply, and allow the primer to dry—significantly shortening the production schedule and reducing process costs by more than 30%. At the same time, it avoids volatile organic compound emissions associated with primers, meeting modern green manufacturing standards and catering to the requirements of medical devices and food-contact products. In addition, the product offers excellent release properties for metal molds, easy colorability, and rapid vulcanization, further enhancing production throughput.

● 2. Full-process compatibility: Adapts to customers’ existing production capacity, eliminating the need for additional retrofitting costs.

By closely aligning with the diverse production capabilities of domestic customers, we have engineered unparalleled process compatibility, enabling seamless integration without the need to replace existing equipment. Whether it’s spray coating, printing, dip coating, molding, extrusion, or coating; or processes such as silicone encapsulation and molding, insert molding, two‑color injection molding, and roll‑to‑roll lamination—each can deliver consistently outstanding performance. From semi‑automatic lines at small and medium‑sized enterprises to fully automated lines at large corporations, our solutions offer precise fit, helping to minimize the costs associated with process upgrades and modifications.

● 3. Full‑material compatibility: Covers all scenarios and supports custom development.

● Breaking the traditional limitations of silicone rubber substrates, this product not only achieves perfect adhesion to common materials such as PC, PET, PBT, PA6, PA66, PPA, metals, stainless steel, glass, and plastics, but also extends to specialized materials like ceramics, wood, textiles, and leather. To meet customers’ specific material requirements, leveraging the technical expertise of our four R&D centers, we offer customized development services—providing end-to-end support from formulation adjustments to process optimization to ensure superior bonding performance.

Product Portfolio: Precisely tailored to diverse substrates and processes

Tailored to the substrate characteristics and manufacturing processes of various industries, Betely has developed a self-adhesive silicone rubber product portfolio that spans three key application areas—“injection molding, spray coating, and leather‑like finishes”—offering customized solutions.

Injection-molded liquid self-adhesive silicone: compatible with multiple substrates, with stable bonding strength.

Specifically designed for precision products such as 3C electronic components, sealing elements for new-energy vehicles, and medical devices, it is categorized into five major series based on substrate type. The key performance parameters are as follows:

Applicable substrate	Product model	Hardness (Shore A)	Tensile strength (MPa)	Elongation at break (%)	Reference values for vulcanization conditions (120–130°C/s)
PC/PET/PBT	BQ-71XX Series	30-70	≥6	≥300	T10:30 / T90:60
PA6/PA66/PPA	BQ-77XX Series	30-70	≥6.5	≥300	T10:33 / T90:62
Metal / Stainless Steel	BQ-75XX Series	40-60	≥7	≥300	T10:28/ T90:55
Glass	BQ-72XX Series	40-50	≥7	≥400	T10:35 / T90:70

Note: Prior to use, it is recommended to apply a surface treatment to the metal mold (e.g., Teflon coating) to prevent sticking.

Compatible substrates: PC, PA, metal, glass

The outstanding performance of Betely self-adhesive silicone rubber stems from the company’s deep technical expertise and rigorous quality control:

● Strong R&D capabilities: The company operates four major R&D centers in Suzhou, Dongguan, Jiujiang, and Wuxi, equipped with over 300 sets of R&D and testing instruments, achieving testing capabilities on par with third-party organizations such as SGS and CNAS. It has been granted 116 patents, conducts independent R&D on core materials, and has broken through key technological barriers.

● Guaranteed production capacity: The three major production bases—Suzhou, Dongguan, and Jiujiang—boast a combined annual capacity of several hundred thousand tons, ensuring reliable supply to meet large‑volume orders.

● Full certification coverage: With seven major certifications—including the IATF 16949 automotive quality management system, ISO 13485 medical device quality management system, ISO 9001 quality management system, and ISO 14001 environmental management system—our products meet the stringent standards of the medical, automotive, electronics, and other industries.

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