Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker ELASTOSIL RT 480 Silicone Rubber

Wacker ELASTOSIL RT 480 is a two-component, addition-curing liquid silicone rubber offering excellent mechanical properties, thermal stability up to 200°C, and low compression set. Ideal for precision molding of medical devices, seals, and automotive parts. Features fast cure at room temperature or elevated heat, outstanding biocompatibility (ISO 10993 compliant), and superior tear strength. Brand: Wacker; Series: ELASTOSIL RT; Model: 480; Core term: Liquid Silicone Rubber.
  • wacker elastosil rt 480 silicone rubber_2cbe66e2
  • wacker elastosil rt 480 silicone rubber_2cbe66e2

Features Of Wacker ELASTOSIL RT 480 Silicone Rubber

  1. Platinum-catalyzed, addition-cure silicone rubber offering excellent dimensional stability and low shrinkage.

  2. High tear strength and outstanding elongation at break for demanding dynamic applications.

  3. Excellent thermal stability with continuous service temperature range from –60 °C to +180 °C.

  4. Good electrical insulation properties and UL 94 HB flammability rating.

  5. Low compression set and superior resistance to aging, ozone, and weathering.

Typical Applications Of Wacker ELASTOSIL RT 480 Silicone Rubber

  1. Automotive sealing components including gaskets, vibration dampers, and sensor housings.

  2. Electrical and electronic encapsulation for connectors, insulators, and power modules.

  3. Industrial molded parts requiring high elasticity and long-term reliability under thermal cycling.

  4. Medical device components compliant with ISO 10993-5 (cytotoxicity) when processed under controlled conditions.

  5. Consumer appliance seals and thermal interface pads in heating/cooling systems.

Specifications Of Wacker ELASTOSIL RT 480 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-component liquid system (Part A + Part B)
AppearanceTranslucent, viscous liquid (Part A); translucent, low-viscosity liquid (Part B)
Shore A Hardness (cured, 7 days @ 23 °C)40 ± 2
Tensile Strength (cured, ISO 37)≥ 5.0 MPa
Elongation at Break (cured, ISO 37)≥ 220 %
Volume Resistivity (cured, IEC 60093)≥ 1 × 10¹⁴ Ω·cm
Processing MethodInjection molding, compression molding, or manual dispensing


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