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

Wacker ELASTOSIL RT 480 Two-Component Silicone Rubber

Wacker ELASTOSIL® RT 480 is a two-component addition-curing silicone rubber offering excellent mechanical strength thermal stability and low compression set. Ideal for precision molds seals and technical parts it cures rapidly at room temperature with outstanding dimensional stability and biocompatibility per ISO 10993.
  • wacker elastosil rt 480 two component silicone rubber_b71e23c7
  • wacker elastosil rt 480 two component silicone rubber_b71e23c7

Features Of Wacker ELASTOSIL RT 480 Two-Component Silicone Rubber

  1. High tear strength and excellent elongation at break for demanding mechanical performance.

  2. Fast room-temperature curing without the need for heat or pressure, enabling efficient production cycles.

  3. Outstanding thermal stability with continuous service capability from –60 °C to +180 °C.

  4. Excellent electrical insulation properties and low dielectric loss across wide frequency ranges.

  5. Good adhesion to various substrates including metals, plastics, and glass after appropriate surface preparation.

Typical Applications Of Wacker ELASTOSIL RT 480 Two-Component Silicone Rubber

  1. Encapsulation and potting of electronic components and sensors.

  2. Manufacturing of flexible gaskets and sealing profiles for automotive and industrial equipment.

  3. Prototyping and low-volume production of functional silicone parts via casting or mold-making.

  4. Insulation layers in high-voltage and aerospace applications requiring flame-retardant alternatives.

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

Specifications Of Wacker ELASTOSIL RT 480 Two-Component Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-component liquid system (Part A + Part B)
AppearanceTranslucent to slightly opaque viscous liquids
Mixing Ratio (by weight)1:1
Cure Time (23 °C / 50 % RH)Approx. 24 hours to full cure; surface tack-free in ~4–6 hours
Shore A Hardness (7 days, 23 °C)48 ± 2
Tensile Strength (7 days, 23 °C)Approx. 5.5 MPa
Elongation at Break (7 days, 23 °C)Approx. 220 %


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