This LSR LED waterproof gasket buffer is manufactured by Xiangchu Rubber. It has excellent sealing and buffering performance, great waterproof, moisture-proof and anti-aging properties to meet the protection requirements of LED lamps. We support customization of size and hardness, and products follow ISO 9001 quality control standards.
Material
Industrial LSR
Hardness
Shore A 30-70
Temperature
Certifications
Applications
-40°C ~ +200°C
Colors
Black, White, Transparent, Customizable
# LSR LED Waterproof Gasket Buffer Seal
Manufactured by 橡楚（湖北）橡胶有限公司 (Xiangchu (Hubei) Rubber Co., Ltd.)
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LSR LED waterproof gasket buffer seals are custom-molded precision components designed specifically for LED lighting systems, combining two critical functions in one part: reliable ingress protection and mechanical shock buffering. Manufactured from high-purity food-contact grade liquid silicone rubber (LSR) by 橡楚（湖北）橡胶有限公司 at our facility in 湖北省鄂州市鄂城区经济开发区凡口街道内河巷54号, these gaskets address the most common failure points of outdoor and industrial LED installations: water intrusion damage and premature component failure from vibration and thermal stress.
Unlike cut gaskets made from solid silicone sheet or extruded EPDM, our LSR LED waterproof gasket buffer seals are produced via liquid injection molding (LIM), enabling consistent complex geometries, tight dimensional tolerances, and uniform material density across every production batch. The inherent properties of LSR make these gaskets ideal for the wide temperature fluctuations that LED lighting systems regularly encounter, from sub-zero winter nights to high operating temperatures generated by high-power LED chips. Each gasket is molded to meet custom design requirements for specific LED housing dimensions, ensuring a perfect fit that delivers long-term waterproof and buffering performance.
This product is suitable for both low-volume custom prototype development and high-volume mass production, with flexible production capabilities that match the needs of LED lighting OEMs, system integrators, and after-sales part suppliers.
Our LSR LED waterproof gasket buffer seals are produced from high-purity addition-cured liquid silicone rubber, with the following base material properties:
Finished gaskets meet the following core performance indicators:
Our liquid injection molding production process is controlled to the following parameters to ensure consistent product quality:
Our LSR LED waterproof gasket buffer seals combine waterproof sealing and vibration buffering in one component, eliminating the need to source and install separate sealing gaskets and buffer pads. This reduces assembly time and part count for LED manufacturers, lowering overall production and supply chain costs. The elastic nature of LSR provides consistent compression to maintain a waterproof barrier while absorbing mechanical shock from impact, wind, and transportation vibration, protecting fragile LED chips and driver components from damage.
LSR inherently resists UV radiation, ozone, and extreme temperature fluctuations, far outperforming EPDM and general purpose rubber gaskets in outdoor applications. Our gaskets maintain elasticity, sealing performance, and buffering capacity after 5+ years of outdoor exposure, with no cracking, hardening, or shrinkage that would compromise LED system performance. This reduces maintenance and replacement costs for outdoor LED installations such as street lighting and landscape lighting.
Using advanced liquid injection molding (LIM) technology, we can produce gaskets with complex integrated geometries, including notches, mounting holes, stepped profiles, and ribbed structures that cannot be achieved with cutting or extrusion processes. This allows full design customization to match any LED housing shape, ensuring complete sealing coverage and consistent compression across the entire gasket surface, eliminating gaps that could lead to water intrusion.
Low-volatility LSR formulations are available for LED applications with high optical requirements, such as high-power street lights and projection lighting. Our post-curing process eliminates residual low-molecular-weight siloxanes, preventing the fogging or hazing of LED lenses that can occur with poor-quality silicone gaskets, maintaining consistent light output and optical performance over the service life of the LED system.
All our base materials meet relevant RoHS and REACH environmental requirements, and our production facility operates under ISO 9001 quality management systems to ensure consistent product quality across every batch.
LSR LED waterproof gasket buffer seals are suitable for a wide range of LED lighting applications that require both ingress protection and shock buffering:
Choose the right LSR hardness based on your application and compression requirements:
All our LSR LED waterproof gasket buffer seals are custom-molded to match your LED housing design. We accept production orders based on 2D drawings, 3D CAD files, or physical samples, with no minimum order quantity for prototypes and flexible MOQ for mass production.
Select the appropriate material grade based on your application:
橡楚（湖北）橡胶有限公司 operates a complete quality management system certified to ISO 9001, with strict quality control at every stage of production, from raw material incoming inspection to finished product final testing. Every production batch undergoes routine testing for hardness, dimensional accuracy, compression set, and waterproof performance to ensure compliance with specification requirements.
Our production facility is located at 湖北省鄂州市鄂城区经济开发区凡口街道内河巷54号, with in-house mold design and manufacturing capabilities that allow us to quickly adjust to design changes and deliver custom prototypes within 7 – 10 working days. For technical inquiries, custom quotation requests, or after-sales support, please contact us at:
