Xiangchu produces liquid silicone rubber waterproof gasket washers, formed with high-quality LSR raw materials. It has excellent elasticity, waterproof and sealing performance, resistance to high and low temperature and corrosion. We support customization of size, hardness and color to meet sealing requirements of multiple fields.
Material
Industrial LSR
Hardness
Shore A 30-70
Temperature
Certifications
Applications
-40°C ~ +200°C
Colors
Black, White, Transparent, Customizable
# Custom Liquid Silicone Rubber Waterproof Gasket Washer
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Custom Liquid Silicone Rubber (LSR) waterproof gasket washers are precision-engineered sealing components designed to prevent water, dust, air, and other contaminants from penetrating enclosed assemblies. Manufactured at 橡楚（湖北）橡胶有限公司 (Xiangchu (Hubei) Rubber Co., Ltd.), 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, these custom-molded gaskets leverage the unique material properties of liquid silicone rubber to deliver reliable long-term sealing performance in diverse operating environments.
As a specialized manufacturer of LSR products, we produce custom waterproof gasket washers tailored to exact customer dimensional and performance requirements, from low-volume prototype runs to high-volume mass production. Unlike generic off-the-shelf gaskets, our custom LSR solutions are designed to match the specific tolerances, compression set resistance, and environmental exposure demands of your application, eliminating fit gaps that compromise sealing integrity. Our gaskets maintain consistent sealing performance across extreme temperature fluctuations, resist UV degradation and chemical exposure, and retain elasticity after years of repeated compression, making them ideal for critical waterproofing applications across industrial, consumer, and automotive sectors.
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All our custom waterproof gasket washers are produced from 100% pure food-grade or industrial-grade liquid silicone rubber, with no recycled fillers or additives that compromise performance. Key material properties include:
Our LSR waterproof gasket washers deliver consistent physical performance across all production runs, with tested parameters as follows:
We use precision liquid injection molding (LIM) for all custom gasket washer production, with controlled process parameters to ensure dimensional consistency:
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LSR has inherently low water absorption and a non-porous surface structure that creates a consistent, tight seal between mating components. Unlike organic rubber compounds that degrade and crack after prolonged water exposure, our LSR gasket washers retain their elasticity and sealing force for over 10 years of continuous use in wet or submerged environments, eliminating the need for frequent maintenance and replacement.
We support full customization of every aspect of the gasket washer, including dimensional geometry, hardness, color, and material grade. Whether you need a complex irregular shaped gasket for an outdoor electronics enclosure or a simple circular washer for plumbing connections, our precision LIM process can produce parts that match your 2D CAD drawings or 3D model files with tight tolerance control. We also offer optional post-processing, including adhesive lamination, die cutting, and surface treatment to meet specific assembly requirements.
Our LSR waterproof gasket washers resist UV radiation, ozone, humidity, and common chemicals including mild acids, alkalis, and cleaning agents. This makes them suitable for both indoor and outdoor applications where exposure to the elements would cause conventional rubber gaskets to harden, crack, or lose sealing ability. They also maintain their sealing performance across wide temperature fluctuations, working reliably in frozen outdoor environments and high-temperature industrial applications.
For food and beverage, medical device, and consumer product applications, we offer food-contact and low-volatile LSR grades that meet global regulatory requirements. Unlike generic gaskets that may leach harmful additives into food or water, our LSR gaskets are non-toxic, odorless, and do not support microbial growth, making them a safe choice for sensitive use cases.
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Our custom LSR waterproof gasket washers are used across a wide range of industries for critical sealing applications:
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Select gasket washer hardness based on your assembly compression requirements:
We accept fully custom dimensional requirements:
Select the appropriate material grade based on your application:
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At 橡楚（湖北）橡胶有限公司, we operate our manufacturing facility under an ISO 9001 certified quality management system, with strict quality control checks at every stage of production: from incoming raw material inspection to in-process dimensional checks and final pre-shipment quality verification. All raw materials are sourced from reputable LSR suppliers with full material test reports, and every production batch undergoes compression set, hardness, and visual inspection to ensure compliance with agreed specifications.
We provide full material certification and test reports for all custom orders upon request. If you have questions about product selection, require a custom quote, or would like to discuss your specific application requirements, contact our team:
