This LSR overmolded street light sealing ring produced by Xiangchu is made of industrial-grade LSR with integrated molding. It has excellent sealing performance, weather resistance, anti-aging, waterproof and leak-proof, suitable for various outdoor street light structures. Size and hardness can be customized, and it is certified by ISO 9001.
Material
Industrial LSR
Hardness
Shore A 30-60
Temperature
Certifications
Applications
-40°C ~ +150°C
Colors
Black, White, Transparent, Customizable
# LED Street Light LSR Sealing Overmolding Part
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LED street light sealing overmolding parts are critical structural components that protect outdoor lighting systems from water, dust, temperature fluctuations, and mechanical vibration. At Xiangchu (Hubei) Rubber Co., Ltd., we specialize in manufacturing custom liquid silicone rubber (LSR) overmolded sealing components tailored for the unique performance requirements of outdoor LED street lighting applications.
Our LED Street Light LSR Sealing Overmolding Parts combine medical-grade raw liquid silicone rubber with precision cold compression molding and overmolding processes to create fully integrated sealing assemblies that bond securely to metal, aluminum alloy, engineering plastic, and polycarbonate street light housings. Unlike separate cut gasket seals, our overmolded design eliminates alignment errors during assembly, reduces installation labor costs, and delivers consistent long-term sealing performance in harsh outdoor environments.
Core selling points of our product include: reliable long-term weatherability, precise dimensional control matching custom street light housing designs, strong adhesion to base substrates, and compliance with ISO 9001 quality management system standards. Every batch of our overmolding parts undergoes strict dimensional inspection and compression set testing before delivery to ensure full compatibility with customer assembly lines and end-use requirements. Our production facility is located at No. 54, Neihe Lane, Fankou Street, Economic Development Zone, Echeng District, Ezhou City, Hubei Province, China, and we offer flexible MOQ and customized production for small and medium batch orders from lighting manufacturers worldwide.
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All our LSR sealing overmolding parts are produced from 100% food-grade raw platinum-cured liquid silicone rubber, with no added recycled rubber or fillers that compromise performance. Key material properties are listed below:
Our standard LED street light LSR overmolding parts meet the following physical performance indicators:
Our overmolding process follows controlled production parameters to ensure consistent bonding and dimensional accuracy:
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Unlike general-purpose rubber or EPDM seals, LSR has inherent resistance to UV radiation, ozone, and thermal cycling. Our overmolding parts do not crack, harden, or deform after 5+ years of continuous outdoor exposure, reducing maintenance frequency and replacement costs for street lighting systems.
We use a pre-treatment process for base substrates and add adhesion promoters compatible with different housing materials, ensuring that the LSR seal layer does not delaminate under long-term vibration or temperature changes. This integrated overmolded design eliminates gaps common in assembled cut gaskets, improving overall sealing reliability.
Our in-house mold design and manufacturing team can produce overmolding parts of any shape, from simple rectangular housing seals to complex contoured seals for lamp head connectors and cable entry points. We can adjust hardness, thickness, and overall dimensions to match custom street light designs, without additional high tooling costs for small custom batches.
Our standard LSR formulation remains flexible and elastic at temperatures as low as -40℃, making it suitable for high-latitude and high-altitude regions where low temperatures can cause EPDM seals to harden and lose sealing performance.
All production processes follow the ISO 9001 quality management system, from raw material incoming inspection to finished product outgoing testing. We maintain full batch traceability for every order, ensuring consistent performance across all production runs.
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Our LED Street Light LSR Sealing Overmolding Parts are designed for a wide range of outdoor LED lighting applications, including:
Common specific overmolding use cases include: overmolded seals for lamp housing joint surfaces, overmolded cable gland seals, overmolded lens gaskets for LED modules, and overmolded sealing inserts for mounting bracket connections.
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We recommend selecting LSR hardness based on your assembly method and sealing pressure requirements:
We produce overmolding parts based on customer-provided 2D drawings or 3D models, with no standard stock sizes. We can accommodate part dimensions from 10 mm up to 500 mm, matching the full range of street light housing sizes from small 30W residential lamps to large 200W main road lamps. For customers developing new street light products, we can provide prototype samples in 7 – 10 working days to support functional testing.
We offer two standard material grades to meet different application requirements:
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At Xiangchu (Hubei) Rubber Co., Ltd., all production processes are operated in strict accordance with the ISO 9001 quality management system. We implement a three-stage quality control process for every order:
We are committed to providing high-quality customized LSR products for global lighting manufacturers. For inquiries, quotations, or sample requests, please contact us at:
