This LSR electronic waterproof gasket is produced and customized by Xiangchu Rubber. It has excellent sealing performance, is waterproof, moisture-proof and aging-resistant, fits various electronic components. We have ISO 9001 certification, can adjust size, hardness and color as per your needs.
Material
Industrial LSR
Hardness
Shore A 30-70
Temperature
Certifications
Applications
-40°C ~ +200°C
Colors
Black, White, Transparent, Customizable
# LSR Electronic Waterproof Component Gasket
Manufactured by 橡楚（湖北）橡胶有限公司
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LSR Electronic Waterproof Component Gasket is a precision-molded sealing product made from high-purity liquid silicone rubber (LSR), designed and produced by 橡楚（湖北）橡胶有限公司, 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, China. This gasket is engineered to provide reliable long-term waterproof sealing for electronic components, addressing common sealing pain points such as water intrusion, material aging, compression set, and poor environmental tolerance that affect the performance and service life of electronic equipment.
Unlike conventional gaskets cut from solid rubber sheets, our LSR electronic waterproof gaskets are manufactured via precision injection molding, which enables consistent tight dimensional tolerances, complex custom geometries, and smooth sealing surfaces that adapt tightly to uneven component housing interfaces. The inherent properties of LSR give the gasket excellent hydrophobicity, weather resistance, and electrical insulation, making it suitable for static and low-frequency dynamic sealing applications across a wide range of electronic devices. Our core selling points are customizability to match specific component dimensions, consistent sealing performance across extreme temperature ranges, and compliance with international environmental and safety standards for electronic applications.
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Our LSR electronic waterproof gaskets are produced from food-contact and electronic-grade virgin liquid silicone rubber, with no recycled rubber added. Key material properties are as follows:
All performance values are tested under standard laboratory conditions (23°C, 50% relative humidity):
Our gaskets are manufactured via precision liquid injection molding (LIM), with the following process and tolerance specifications:
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The inherent low surface energy of LSR gives the gasket permanent hydrophobicity that does not degrade over time, unlike porous or coated sealing materials that lose water resistance after prolonged exposure to moisture. When installed with the correct compression rate (15 ~ 30%), our gaskets maintain consistent sealing pressure even after years of use, preventing water, dust, and moisture from intruding into sensitive electronic components. Up to IP68 protection rating can be achieved with proper design, making it suitable for electronic devices used in wet or underwater environments.
LSR is inherently resistant to ozone, UV radiation, humidity, and common automotive/electronic chemicals, meaning the gasket will not crack, harden, or swell when exposed to outdoor or harsh operating conditions. It maintains stable elasticity and sealing performance across the full -40°C to +200°C temperature range, outperforming organic rubber gaskets that become brittle at low temperatures or soften and deform at high temperatures. This makes it ideal for electronic devices that experience wide temperature fluctuations.
Liquid injection molding of LSR enables us to produce gaskets with complex geometries, integrated ribs, notches, and mounting holes that perfectly match custom electronic housing designs. We can accommodate custom sizes from small 5 mm diameter gaskets for sensors to large 300 mm gaskets for industrial control enclosures, with tight tolerances that ensure a perfect fit every time. We also offer optional self-adhesive backing to simplify assembly and reduce production time for our customers.
Our LSR raw materials are RoHS 2.0 and REACH compliant, free of restricted harmful substances. The addition-curing process we use eliminates residual by-products that could corrode metal contacts or damage sensitive electronic components, making the gasket safe for long-term use inside closed electronic enclosures. The gasket also provides excellent electrical insulation that prevents short circuits and improves the overall safety of electronic equipment.
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LSR Electronic Waterproof Component Gaskets are suitable for a wide range of electronic applications requiring waterproof sealing, including but not limited to:
Application Note: This gasket is designed for static sealing applications. For dynamic sealing applications with repeated movement, please contact our technical team to discuss material and design adjustments to meet your requirements.
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Choosing the correct hardness is critical to achieving optimal sealing performance:
All our LSR electronic waterproof gaskets are custom manufactured to match your component drawings. We do not keep standard gasket sizes in stock, as most electronic applications require custom dimensions to fit specific housing designs. Please provide 2D or 3D drawings with tolerance requirements when placing an order, and our engineering team will confirm the design and produce a sample for your testing before mass production.
We offer two standard material grades to match different application requirements:
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At 橡楚（湖北）橡胶有限公司, we implement strict quality control in accordance with our ISO 9001 certified quality management system. Every batch of raw material is inspected for physical properties before production, and each finished gasket undergoes 100% visual inspection to check for surface defects, dimensional inspection per drawing requirements, and random sample waterproof testing to confirm performance meets specifications.
We maintain full traceability for all production batches, from raw material incoming inspection to finished product delivery. If you require third-party testing reports or material certification for compliance purposes, we can provide relevant documentation upon request.
For inquiries, custom sample requests, or technical support, please contact us:
