This dustproof waterproof seal ring is made of liquid silicone rubber by Xiangchu. It has excellent sealing performance, anti-aging property and good tolerance to extreme temperature. It meets quality management requirements and supports customization.
Material
Industrial LSR
Hardness
Shore A 30-70
Temperature
Certifications
Applications
-40°C ~ +200°C
Colors
Black, White, Transparent, Customizable
# Liquid Silicone Rubber Dustproof Waterproof Seal
Manufactured by 橡楚（湖北）橡胶有限公司
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Liquid Silicone Rubber (LSR) dustproof waterproof seals are custom-molded precision sealing components engineered to block fine particulate contamination and prevent water ingress in dynamic and static operating environments. As a specialized LSR product manufacturer, 橡楚（湖北）橡胶有限公司 produces these seals to meet demanding performance requirements for a wide range of industrial and commercial applications.
Our LSR dustproof waterproof seals combine the inherent advantages of liquid silicone rubber with precision compression molding to deliver consistent long-term sealing performance. Unlike general rubber seals, our products maintain elastic recovery and sealing force across extreme temperature fluctuations, resist UV degradation and ozone corrosion, and meet basic food-safe and medical-grade contact requirements for applicable scenarios. Each seal is manufactured under controlled processes to ensure tight dimensional tolerances, eliminating gaps that would allow dust or water to penetrate critical equipment components.
These seals are suitable for both static sealing between fixed mating surfaces and dynamic sealing on moving parts such as rotating shafts, sliding rods, and movable housing joints. We produce standard and custom seals tailored to customer-specific equipment dimensions and performance requirements, with flexible production batches to support both prototyping and mass production needs.
Our liquid silicone rubber dustproof waterproof seals are manufactured from high-purity addition-cure LSR, with the following core material properties:
All our LSR dustproof waterproof seals meet the following physical performance standards (tested per ASTM D2000 guidelines):
Our standard manufacturing process parameters ensure consistent product quality:
Unlike single-function seals that only block dust or water, our LSR seals are formulated to deliver consistent dual protection. The low surface energy of silicone repels water droplets, while the controlled compression set maintains constant contact pressure between mating surfaces to block fine particulate matter as small as 1μm from entering protected components.
LSR inherently resists UV radiation, ozone oxidation, and weathering, unlike organic rubber materials that crack, harden, or degrade after prolonged outdoor exposure. Our seals maintain elastic and sealing performance after 500 hours of accelerated UV aging testing, making them suitable for long-term outdoor use without performance degradation.
Our raw LSR materials do not contain plasticizers, heavy metals, or harmful volatile additives. They meet basic biocompatibility requirements for indirect food contact and medical device applications, expanding their usability across industries that require low-toxicity sealing components. They also do not react with most common industrial materials, avoiding corrosion or contamination of mating components.
We support full customization of size, shape, hardness, and color to match customer equipment design requirements. Our in-house molding workshop allows us to produce small-batch prototype seals and large-batch mass production efficiently, with short lead times for most standard and custom orders.
While LSR seals have a slightly higher upfront material cost than general nitrile rubber seals, their 2-3 times longer service life reduces maintenance frequency and replacement costs, delivering lower total lifecycle cost for most equipment applications.
Liquid silicone rubber dustproof waterproof seals are used across a wide range of industries, including:
Select Shore A hardness based on your application's sealing requirements:
We offer standard off-the-shelf seals for common shaft diameters and housing sizes ranging from 5 mm inner diameter to 500 mm outer diameter. For non-standard equipment dimensions, we provide full custom sizing to match your design drawings, no minimum order quantity for prototype development.
We offer two standard material grades to match different application requirements:
At 橡楚（湖北）橡胶有限公司, we operate our manufacturing system in compliance with ISO 9001 quality management standards, implementing full traceability from raw material incoming inspection to finished product outgoing testing. Each batch of LSR dustproof waterproof seals undergoes dimensional inspection, visual defect checking, and compression performance testing before delivery to ensure compliance with specification requirements.
We source raw LSR materials from qualified suppliers, with incoming material testing for hardness, density, and purity to eliminate non-conforming raw materials from entering production. 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, where we maintain controlled production environments to avoid contamination during manufacturing.
For customer inquiries, custom design requests, or after-sales support, please contact us at:
We welcome customer sample testing and performance validation to confirm our products meet your application requirements.
