This LSR battery compartment seal for smart door lock is produced by Xiangchu Rubber. It features excellent waterproof sealing performance, good aging resistance, fits different size specifications, meets LSR injection molding standards, supports customization, provides stable and reliable sealing protection for smart door lock battery compartment.
Material
Industrial LSR
Hardness
Shore A 30-70
Temperature
-40°C ~ +200°C
Colors
Black, White, Transparent, Customizable
Certifications
Applications
# LSR Water-proof Seal For Smart Door Lock Battery Compartment
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The LSR water-proof seal for smart door lock battery compartments is a precision-molded sealing component manufactured by 橡楚（湖北）橡胶有限公司, designed to solve common failure points of smart locks caused by water intrusion, dust accumulation, and temperature fluctuation. Made entirely from food-contact grade liquid silicone rubber (LSR), this seal combines excellent elasticity, chemical resistance, and dimensional stability to provide long-term reliable protection for the power supply system of residential, commercial, and industrial smart locks.
Unlike traditional cut rubber gaskets or foam sealing tapes, our LSR battery compartment seals are produced through precision injection molding, enabling consistent tight tolerances and complex profile matching that aligns perfectly with most standard smart lock battery compartment designs. The material retains its flexibility and sealing performance across a wide range of ambient temperatures, avoiding hardening, cracking, or shrinkage that often lead to seal failure in cheaper alternative products. As a core component of the smart lock system, this seal prevents water splash, condensation, dust, and insect intrusion into the battery compartment, extending battery service life and reducing the risk of unexpected lock downtime caused by power failure.
All our LSR sealing products are produced in our factory 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, with strict raw material screening and process control to meet consistent quality requirements for mass production and OEM customization.
The inherent hydrophobic property of LSR, combined with precision-molded uniform cross-section, creates a consistent, continuous compression seal between the battery compartment cover and the lock housing. Unlike organic rubber or thermoplastic elastomers that degrade with prolonged exposure to moisture and UV, LSR resists hydrolysis and oxidation, maintaining seal performance for the entire service life of the smart lock. It effectively blocks daily water splash from hand washing, outdoor rain, and indoor condensation, preventing battery corrosion and short circuits.
Smart locks are deployed in a wide range of environments, from freezing outdoor winter conditions to hot, humid summer climates. Our LSR seal retains its elasticity and sealing pressure across -40°C to 200°C, avoiding brittleness at low temperatures and excessive softening at high temperatures that would compromise protection. It also resists fading, ozone degradation, and common household cleaning chemicals, ensuring no performance degradation after years of use.
All our seals are produced using automated liquid injection molding, which ensures consistent dimensional accuracy and eliminates the defects common in manual cutting or compression molding, such as burrs, uneven thickness, and flash. This precision guarantees a tight fit with standard battery compartment geometries, reducing assembly errors and ensuring every seal meets the required ingress protection rating out of the box. We can also adjust mold profiles to match custom compartment designs for specific smart lock models.
We use only high-purity addition-cured LSR that meets RoHS and REACH environmental standards, with no harmful phthalates, heavy metals, or volatile organic compounds (VOCs). The material does not release unpleasant odors even under high temperature conditions, making it safe for residential use in indoor and outdoor door applications.
This LSR water-proof seal is designed specifically for the battery compartment of smart door locks, with core applications including:
It can also be adapted for sealing small battery compartments in other outdoor smart electronic devices, such as access control card readers, Bluetooth gate openers, and outdoor security sensors, requiring similar water and dust protection.
We offer multiple hardness options to match different assembly designs and compression requirements:
We maintain stock for most standard smart lock battery compartment seal sizes, including common profiles for 4-cell AA and 2-cell AA battery compartments. If you require a custom size or profile to match your unique lock design, our engineering team can develop custom molds based on your 2D drawings or 3D CAD files, with flexible minimum order quantities for prototype and mass production.
All our standard LSR seals are produced with food-contact grade LSR that meets global environmental requirements. For special applications requiring additional properties, such as flame retardance, we can adjust the material formulation to meet your specific requirements (minimum order quantities apply for custom formulations).
橡楚（湖北）橡胶有限公司 operates a strict quality management system certified to ISO 9001, with full traceability from raw material incoming inspection to final product outgoing inspection. Every batch of LSR water-proof seals undergoes dimensional inspection, visual defect checking, and compression set testing to ensure compliance with our technical specifications and customer requirements.
We source all base LSR materials from qualified domestic suppliers with full material safety data sheets (MSDS) and compliance certificates, ensuring consistent material quality for every production run. Our production facility in 湖北省鄂州市鄂城区经济开发区凡口街道内河巷54号 implements standardized process control to reduce product variation, and we conduct 100% visual inspection for critical dimension defects before delivery.
For inquiries about customization, pricing, or sample requests, please contact us at:
