Made of high-quality liquid silicone with integrated molding, it has excellent high pressure resistance and waterproof sealing performance, resists dust and water intrusion, fits multiple cable specifications, has strong aging and weather resistance, is not easy to deform after long-term use, and effectively improves the reliability and safety of industrial circuit connections.
Material
Industrial LSR
Hardness
Shore A 50-70
Temperature
Certifications
Applications
-40°C ~ +180°C
Colors
Black, White, Transparent, Customizable
# Liquid Silicone High Pressure Waterproof Connector for Industrial Sealing
The Liquid Silicone High Pressure Waterproof Connector is a specialized industrial sealing component engineered to deliver reliable electrical or fluid line connectivity while maintaining superior waterproofing and pressure resistance in harsh operating environments. Unlike traditional rubber or plastic connectors that degrade under extreme thermal cycling, hydraulic pressure, or chemical exposure, this product is precision-molded from medical and industrial-grade liquid silicone rubber (LSR), combining exceptional elasticity, long-term durability, and compliance with global industrial safety standards.
At its core, the connector features an integrated LSR sealing gasket and snap-fit locking mechanism, eliminating the need for additional sealing tapes or adhesives during installation. It is designed to withstand continuous submersion, high-pressure spray, and extreme pressure differentials up to 150 bar, making it ideal for applications where water ingress or pressure fluctuations would cause conventional connectors to fail. Key selling points include IP68/IP69K ingress protection ratings, compatibility with a wide range of cable diameters and fluid line sizes, and a service life of over 10,000 mating cycles, reducing maintenance costs and downtime for industrial operations.
The primary sealing element of the connector is manufactured from high-consistency injection-molded LSR, with a thermoplastic reinforced PA66 outer housing for structural rigidity. Material properties are tested per ASTM D2000 industrial rubber standards:
The connector’s mechanical and sealing performance is validated to international industrial connector standards:
The LSR sealing components are manufactured via precision injection molding with tight process control to ensure consistent quality:
Unlike nitrile rubber (NBR) or EPDM connectors that suffer from compression set and leakage at pressures above 50 bar, the LSR sealing element of this connector maintains 90% of its original elasticity after 1,000 hours of continuous exposure to 100 bar pressure. The integrated lip seal design creates a self-reinforcing sealing effect: as external pressure increases, the seal lip presses tighter against the mating surface, eliminating the risk of water or fluid ingress even under sudden pressure surges.
The LSR material performs consistently across a -60°C to +220°C temperature range, outperforming plastic connectors that become brittle below -20°C and melt above 120°C. It is also UV-resistant, ozone-resistant, and immune to hydrolysis, making it suitable for outdoor, marine, and underground applications where other materials would degrade within 1–2 years. The connector has passed 1,000 hours of accelerated weathering testing (QUV) with no cracking or discoloration, and a 5,000-hour thermal cycling test between -40°C and 180°C with no sealing performance loss.
Platinum-cured LSR is non-toxic, odorless, and resistant to bacterial growth, making the connector suitable for food and beverage, pharmaceutical, and medical device applications. The smooth, non-porous LSR surface does not trap dirt or residues, and can be cleaned with high-pressure steam, chemical disinfectants, or CIP (clean-in-place) processes without degrading. Unlike threaded connectors that require regular re-tightening and seal replacement, the snap-fit design of this connector requires no maintenance for up to 5 years of continuous operation.
The connector is available in configurations for both electrical signal/power transmission and fluid line connectivity, compatible with cable diameters from 3mm to 50mm and fluid line sizes from 1/8” to 2” NPT/metric threads. Custom LSR formulations, hardness values, and housing colors are available for specialized use cases, such as fire-retardant grades for mining applications, low-temperature grades for polar equipment, and conductive LSR variants for ESD-sensitive environments.
Used for downhole sensor connections and wellhead control system wiring, where the connector withstands 150 bar pressure, 180°C temperatures, and exposure to crude oil and hydrogen sulfide without leakage or signal interference. Its IP68 rating prevents water ingress during subsea well installation and maintenance operations.
Ideal for conveyor system sensor connections and CIP fluid line couplings in processing plants. The food-grade LSR material complies with FDA and EU 1935/2004 standards, and the IP69K rating allows for daily high-pressure steam cleaning without damaging internal electrical components.
Deployed in offshore wind turbine nacelle wiring and underwater tidal energy system connections, where it resists saltwater corrosion, UV exposure, and 100 bar dynamic pressure from ocean currents. Its long service life reduces the need for costly offshore maintenance visits.
Used for fluid transfer lines and sensor connections in sterile manufacturing equipment and surgical devices. The medical-grade LSR material is biocompatible (ISO 10993 certified), autoclavable, and resistant to common medical disinfectants, ensuring compliance with healthcare industry hygiene standards.
Suitable for wiring harness connections in mining excavators and tunnel boring machines, where it withstands 10g vibration, 1.5m impact loads, and exposure to coal dust and hydraulic fluids. Its flame-retardant housing meets mining safety requirements for underground operations.
All Liquid Silicone High Pressure Waterproof Connectors undergo a rigorous 5-step quality control process before shipment:
We offer a 3-year limited warranty for all standard connectors, covering defects in materials and workmanship under normal operating conditions. Custom products are backed by a 1-year warranty, with dedicated technical support available to resolve application-specific issues within 24 hours of inquiry.
