Manufactured by Xiangchu Rubber, this LSR electronic waterproof component sheath is made by integrated injection molding with high quality liquid silicone rubber. It features excellent waterproof sealing performance, good temperature and aging resistance, and high fitting degree. Size and hardness can be customized to meet various electronic device protection requirements.
Material
Industrial LSR
Hardness
Shore A 30-70
Temperature
Certifications
Applications
-40°C ~ +200°C
Colors
Black, White, Transparent, Customizable
# LSR Electronic Waterproof Component Protective Sheath
*Manufactured by 橡楚（湖北）橡胶有限公司*
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LSR (Liquid Silicone Rubber) Electronic Waterproof Component Protective Sheath is a custom-molded sealing protection product specifically developed for sensitive electronic components, designed to isolate internal components from moisture, dust, liquid splashes, and mechanical impact in harsh operating environments. Manufactured by 橡楚（湖北）橡胶有限公司 from high-purity medical-grade and industrial-grade liquid silicone rubber, our protective sheaths combine excellent elasticity, weather resistance, and water barrier performance to meet long-term stable protection requirements for electronic devices in outdoor, industrial, and humid application scenarios.
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, our production facility uses precision injection molding processes to achieve complex custom shapes and tight dimensional tolerances, ensuring a perfect fit for various irregular electronic components. Unlike traditional rubber or plastic protection solutions, our LSR protective sheaths maintain stable performance across a wide temperature range, do not crack or harden after long-term use, and provide reliable long-term waterproof protection without interfering with the normal function of internal electronic components.
This product is suitable for both low-volume custom prototype development and mass production, and can be adjusted in formula, hardness, and size according to specific customer application requirements. Core selling points include reliable IP-level waterproof performance, excellent environmental resistance, customizable geometric shapes, and long service life.
Our LSR Electronic Waterproof Component Protective Sheath is produced from addition-cure food-grade/industrial-grade liquid silicone rubber with the following core material properties:
Finished products undergo full inspection of physical performance to meet the following standards:
All our products are produced via precision LSR injection molding with the following controlled process parameters:
The inherent hydrophobicity of liquid silicone rubber gives our protective sheaths excellent water barrier performance, which does not degrade after long-term immersion or repeated temperature cycles. The elastic fit of LSR can absorb micro-vibration displacement of components during use, maintaining continuous sealing performance to prevent moisture from penetrating into core electronic components. We can achieve waterproof ratings up to IP68 for deep water applications according to customer requirements.
Unlike general-purpose organic rubber, LSR resists ultraviolet radiation, ozone, oxidation, and aging, and can maintain stable elasticity and mechanical properties after long-term exposure to outdoor or industrial environments. It does not crack, become sticky, or deform under extreme high and low temperatures, and the service life is 3–5 times longer than that of nitrile rubber and neoprene protective parts under the same conditions. In addition, our standard products are RoHS and REACH compliant, meeting international environmental protection requirements for electronic products.
Liquid silicone rubber has good fluidity before curing, and can be precisely injected into complex mold cavities to form protective sheaths with special geometric shapes, grooves, and structural features to match the appearance of irregular electronic components. We support full custom development according to customer-provided 2D drawings or 3D models, and can adjust the hardness and thickness of the product to meet different functional requirements—whether soft buffer protection or hard structural support.
LSR has excellent electrical insulation performance, with a dielectric strength of up to 20kV/mm, which will not affect the signal transmission and normal electrical performance of internal electronic components. It can be used to protect signal connectors, sensors, and other components that require maintaining signal penetration, and can even be formulated with specific conductivity for static shielding applications if required by customers.
Our LSR Electronic Waterproof Component Protective Sheaths are widely used in the following industries and scenarios:
In practical use, this product can be directly fitted and assembled with components through interference fit, bonding, or buckle combination, which is easy to install and does not require additional complex sealing processes.
We provide a range of hardness options to suit different application scenarios:
All of our LSR protective sheaths are fully customized, we do not have standard stock sizes. Customers can provide 2D dimensional drawings or 3D model files, we will proof according to the required size and open mold for mass production. The maximum size of a single product we can produce is 300mm × 200mm × 50mm, and for larger-sized protection requirements, we can also provide split assembly design solutions.
We offer two main material grades to meet different application needs:
橡楚（湖北）橡胶有限公司 operates under a strict quality management system certified to ISO 9001, and every batch of LSR Electronic Waterproof Component Protective Sheath undergoes multi-process quality inspection to ensure consistent product performance. Our quality control process includes:
If you have any questions about product customization, proofing or technical parameters, please contact us at:
We can provide professional product selection suggestions and customized solutions according to your specific application requirements.
