Liquid Silicone Rubber (LSR) Overmolded Components
1. Medical & Healthcare
Respiratory Masks(PC + LSR): Transparent frame with soft sealing edge for facial comfort.
Medical Catheter Connectors(ABS + LSR): Rigid interface with elastic seal to prevent fluid leakage.
2. Consumer Electronics(Substrates: PC/Aluminum Alloy/Glass)
Smartwatch Straps(Aluminum alloy + LSR): Metal buckle with skin-friendly silicone strap (IP68 waterproof).
Headphone Charging Cases(PC + LSR): Rigid shell with shock-absorbing silicone cover (impact-resistant).
Mobile Phone Buttons(Glass cover + LSR): Touch area with waterproof sealing ring.
3. Automotive & New Energy(Substrates: PBT/PA66/Metal)
Steering Wheel Buttons(PBT + LSR): Hard buttons with soft-touch silicone (oil-resistant and wear-resistant).
Charging Gun Seals(PA66 + LSR): High-temperature-resistant plug with waterproof seal (IP67).
Sensor Housings(Aluminum alloy + LSR): Metal shell with vibration-damping silicone layer.
4. Home Appliances & Household Products(Substrates: PP/PS/Ceramic)
Electric Toothbrush Handles(PP + LSR): Non-slip grip with waterproof design.
Kitchen Appliance Buttons(Ceramic panel + LSR): Oil-resistant and easy-to-clean.
Shower Nozzles(ABS + LSR): Rigid body with flexible massage nodules.
5. Industrial & Energy Sectors(Substrates: PPS/Metal)
Photovoltaic Junction Boxes(PPS + LSR): High-temperature-resistant housing with UV-protective seal (25-year weather resistance).
Industrial Valve Seals(Stainless steel + LSR): Metal base with acid/alkali-resistant silicone layer.
Core Technical Requirements
Material Compatibility: Surface treatment (plasma/primers) required to enhance adhesion between LSR and substrates like PC/metal.
Precision Molding: Mold temperature control (±1°C) to prevent flash, tolerance ±0.05mm.
Certification Standards: Medical (ISO 10993), Automotive (UL94 V0), Food Contact (FDA 21 CFR 177.2600).
LSR overmolding technology leverages the advantages of composite materials to significantly improve product functionality, durability, and user experience, making it a key process in high-end manufacturing.













