Produced by Xiangchu Rubber, this LSR overmolded LED waterproof gasket is made via injection molding with reliable waterproof sealing performance and accurate dimension fitting for LED devices. We support customization of color and hardness, all products follow ISO 9001 quality control standards.
Material
Industrial LSR
Hardness
Shore A 30-60
Temperature
Certifications
Applications
-40°C ~ +150°C
Colors
Black, White, Transparent, Customizable
# LSR Overmolded LED Waterproof Gasket
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LSR Overmolded LED Waterproof Gasket is a custom-molded sealing component designed specifically for LED lighting devices, manufactured using food-grade and industrial-grade liquid silicone rubber (LSR) by 橡楚（湖北）橡胶有限公司 (Xiangchu (Hubei) Rubber Co., Ltd.). Located at No. 54, Neihe Alley, Fankou Sub-district, Ezhou City Economic Development Zone, Echeng District, Ezhou, Hubei Province, China, our factory specializes in precision LSR molding to produce sealing components that meet the demanding environmental requirements of outdoor and indoor LED lighting applications.
This product combines the excellent elasticity, low temperature resistance, and weatherability of LSR with a precision overmolding process that bonds the silicone gasket directly to the plastic or metal base of LED housings, eliminating assembly gaps and providing long-term reliable waterproof and dustproof protection. Unlike traditional cut gaskets or adhesive-bonded seals, our overmolding process forms an integrated structure that avoids gasket displacement, aging failure, and seal degradation caused by long-term vibration and temperature fluctuations. It can maintain stable sealing performance in a wide temperature range from -40°C to 200°C, and meets long-term exposure requirements in rain, snow, humidity, and ultraviolet environments.
Core selling points of our LSR Overmolded LED Waterproof Gasket include: custom molding for non-standard LED housing sizes, excellent adhesion between LSR and substrate materials, stable long-term waterproof performance up to IP68, and compliance with RoHS and REACH environmental regulations for global export markets.
Our product uses 100% pure platinum-cured liquid silicone rubber as the base material, with no recycled rubber added. Key material properties are as follows:
Our precision overmolding process pre-treats the substrate surface before LSR injection, forming a chemical and physical dual bonding between LSR and the LED housing substrate. Compared to traditional assembled gaskets that rely on friction or adhesive to fix, this integrated structure completely eliminates gaps at the bonding interface, avoids gasket displacement, falling off, or gap expansion caused by vibration and temperature cycling, and greatly improves the long-term reliability of the sealing system.
Liquid silicone rubber has inherent anti-ultraviolet and anti-ozone properties, and our platinum-cured LSR formula does not contain easily decomposable additives. Our LSR Overmolded LED Waterproof Gasket will not crack, soften, or harden after 5+ years of outdoor exposure, far outperforming ordinary rubber or thermoplastic elastomer seals that usually age and fail within 2~3 years. This greatly reduces the maintenance cost of outdoor LED lighting systems such as street lamps and landscape lights.
We support custom molding of LSR overmolded gaskets for LED devices with various irregular housing shapes, including curved edges, multi-stage sealing surfaces, and embedded positioning structures. Our precision LSR injection molding process can accurately replicate complex sealing structure designs, meet the lightweight and miniaturization design trends of modern LED devices, and avoid the performance loss caused by simplified design for adapting to traditional cutting or stamping processes.
All our LSR materials comply with EU RoHS 2.0 and REACH environmental regulations, and we can provide food-grade LSR options for LED lighting products used in food processing areas and residential drinking water facilities. The product does not release volatile organic compounds (VOC) during use, and will not cause pollution to the environment or harm to the human body.
LSR Overmolded LED Waterproof Gaskets are widely used in various LED lighting products that require sealing protection:
We recommend selecting LSR hardness based on your sealing pressure and assembly method:
All our LSR Overmolded LED Waterproof Gaskets are custom-made according to customer-provided 2D drawings or 3D models. We do not stock standard sizes, which allows us to fully match the sealing structure of different LED housing designs. Customers only need to provide the required waterproof rating, bonding substrate material, and dimensional drawings, and our technical team will confirm the molding plan and dimensional tolerance range.
橡楚（湖北）橡胶有限公司 operates a complete quality management system certified to ISO 9001, and every batch of LSR Overmolded LED Waterproof Gasket undergoes strict quality inspection before delivery. Our quality control process includes raw material incoming inspection, in-process dimensional inspection, sample waterproof performance testing, and finished product appearance inspection. We can provide material test reports, dimensional inspection reports, and certification documents as required by customers.
For customized products, we provide pre-production sample confirmation to ensure that the product dimensions, hardness, and appearance meet customer requirements before mass production. If you have any technical questions or customized needs, please contact us:
