This liquid silicone rubber sealing gasket sheath is produced by Xiangchu (Hubei) Rubber Co., Ltd. It has excellent elasticity, waterproof sealing performance, high and low temperature resistance and aging resistance. It meets ISO 9001 quality requirements, and supports customization of size and hardness for various sealing scenarios.
Material
Industrial LSR
Hardness
Shore A 30-70
Temperature
Certifications
Applications
-40°C ~ +200°C
Colors
Black, White, Transparent, Customizable
# Liquid Silicone Rubber Waterproof Gasket Sheath
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Liquid Silicone Rubber (LSR) waterproof gasket sheaths from 橡楚（湖北）橡胶有限公司 are custom-molded sealing components designed to provide long-term reliable waterproofing, environmental protection, and mechanical cushioning for a wide range of industrial and commercial applications. Manufactured from high-purity food-safe and industrial-grade liquid silicone rubber at our facility located 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 components combine the inherent advantages of LSR with precision molding to meet demanding performance requirements for static and dynamic sealing environments.
Unlike gasket sheaths manufactured from conventional organic rubber, our LSR waterproof gasket sheaths retain excellent elasticity, sealing performance, and resistance to environmental degradation after long-term exposure to water, ozone, UV radiation, and extreme temperature fluctuations. They are engineered to fit precisely over pre-formed gaskets or directly enclose component interfaces, providing an extra layer of waterproof protection while preventing gasket extrusion, abrasion, and chemical contamination. We produce all our LSR products in strict accordance with documented quality management processes, supporting both standard component designs and custom specifications to match unique application requirements.
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Our liquid silicone rubber waterproof gasket sheaths are produced from 100% high-molecular-weight addition-cured liquid silicone rubber, with no added fillers that compromise long-term performance. Key material properties include:
This addition-cured LSR formulation is free of nitrosamines, phthalates, and heavy metals, meeting basic regulatory requirements for low-volatility applications.
All performance values are tested under standard laboratory conditions; actual performance may vary slightly based on custom hardness and formulation requirements.
For custom molded LSR gasket sheaths produced by 橡楚（湖北）橡胶有限公司:
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Our LSR waterproof gasket sheaths have extremely low water absorption (less than 0.3% after 24 hours of immersion) and retain consistent elastic compression even after long-term exposure to fresh water, salt water, and most mild chemicals. Unlike organic rubber sheaths that harden, crack, or shrink after years of water exposure, our LSR formulations maintain sealing force to prevent water intrusion, making them ideal for long-term outdoor and underwater applications.
With a continuous service temperature range of -40°C to +200°C, these gasket sheaths retain elasticity and sealing performance in both frozen high-altitude environments and high-temperature industrial applications. They do not become brittle in sub-zero conditions or soften and deform at elevated temperatures, providing consistent sealing performance across changing seasonal and operating conditions.
Liquid silicone rubber injection molding enables high-precision production of gasket sheaths with complex cross-sections, curved profiles, and tight tolerances that cannot be achieved with conventional compression molding. We can produce custom gasket sheaths to match any unique component interface requirement, from small electronic device enclosures to large industrial equipment connections.
We offer food-contact compatible and general industrial LSR formulations. Our addition-cured process eliminates residual peroxide byproducts common with condensation-cured silicone, resulting in low odor, low volatility, and no contamination to sensitive enclosed components, making them suitable for use in drinking water systems, food processing equipment, and consumer electronics.
LSR inherently resists UV radiation, ozone, and atmospheric aging, so our gasket sheaths do not crack, discolor, or lose sealing performance after years of outdoor exposure. This extended service life reduces maintenance frequency and replacement costs for long-term installations.
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Liquid Silicone Rubber waterproof gasket sheaths from 橡楚（湖北）橡胶有限公司 are used across a wide range of industrial and commercial applications, including:
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The appropriate hardness for your gasket sheath depends on your application’s compression requirement and environmental conditions:
We support both standard stock sizes and fully custom size production:
Select the appropriate LSR material grade based on your application requirements:
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橡楚（湖北）橡胶有限公司 operates a strict quality management system certified to ISO 9001, covering every stage of raw material inspection, in-process production testing, and final finished product inspection to ensure every batch of LSR waterproof gasket sheaths meets the specified performance requirements. Our raw material suppliers are vetted for consistent quality, and every batch of incoming LSR material is tested for hardness, specific gravity, and curing performance before production. During production, we conduct regular dimensional and visual inspections to identify and correct deviations early, and 100% of finished products undergo a final visual inspection and dimensional check before shipment. For custom batches, we can provide material test reports and performance inspection documentation upon request.
If you have questions about product selection, custom specifications, or pricing, please contact us at:
