Liquid silicone rubber (LSR) encapsulation is a composite technology that utilizes injection molding to encapsulate liquid silicone rubber onto a plastic substrate. This process leverages the high elasticity, temperature resistance, and biocompatibility of silicone rubber, combined with the structural strength and design flexibility of plastic, to achieve comprehensive performance that cannot be achieved with a single material.
Main functions:
Sealing and Waterproofing: The silicone part can form a flexible sealing ring, which has dustproof and waterproof (commonly seen in IP67/IP68 rated products) functions, such as smart watches and outdoor lighting fixtures.
Enhancing grip experience: The soft touch and anti-slip properties of silicone improve the grip comfort of tool handles, wearable devices, and daily necessities.
Shock absorption and protection: The silicone layer can absorb shocks and protect internal electronic components or precision structures, making it widely used in sports equipment and instrument casings.
Aesthetic and functional integration: Through two-color injection molding, color contrast or transparent design is achieved, while functional components such as buttons and seals are integrated to reduce assembly processes.
Safety and Weather Resistance: Silicone is resistant to high and low temperatures (-50℃ to 200℃) and exhibits strong chemical stability, making it suitable for use in environments such as automotive parts and kitchen utensils.
Scope of application: Consumer electronics: smartphone frames, smartwatch straps, earphone casings, waterproof charging interfaces.
Automotive industry: in-vehicle buttons, sealed wire harness connectors, interior touch panels.
Instruments: respiratory mask, handheld device casing, contact parts.
Household items: high-end kitchen utensil handles, waterproof electric toothbrushes, and baby products' biting parts.
Industrial accessories: shockproof remote control, sealed connector, corrosion-resistant tool handle.
This technology, which achieves a balance between thinness, durability, and user experience through material complementarity, has become one of the core processes in the design of high-value-added products.
