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

Wacker ELASTOSIL RT 702 Two-Component Silicone Rubber

Wacker ELASTOSIL RT 702 is a two-component, addition-curing silicone rubber from Wacker’s high-performance RT series. It offers excellent mechanical strength, thermal stability up to 180°C, low compression set, and outstanding demolding behavior. Ideal for precision molding of technical parts, gaskets, and seals in automotive and industrial applications.
  • wacker elastosil rt 702 two component silicone rubber_98d5a06e
  • wacker elastosil rt 702 two component silicone rubber_98d5a06e

Features Of Wacker ELASTOSIL RT 702 Two-Component Silicone Rubber

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

  2. Fast room-temperature curing without requiring heat or pressure.

  3. Low viscosity before mixing enables easy handling, degassing, and mold filling.

  4. Excellent dimensional stability and low shrinkage after vulcanization.

  5. Good adhesion to various substrates including metals, plastics, and primed surfaces.

Typical Applications Of Wacker ELASTOSIL RT 702 Two-Component Silicone Rubber

  1. Prototyping and functional rapid prototyping of elastomeric parts.

  2. Manufacturing soft-touch grips and ergonomic components for consumer electronics.

  3. Production of seals, gaskets, and vibration-damping elements in automotive interiors.

  4. Medical device housings and non-implantable wearable components requiring biocompatibility (ISO 10993 compliant).

  5. Artistic casting, special effects prosthetics, and museum-grade replication.

Specifications Of Wacker ELASTOSIL RT 702 Two-Component Silicone Rubber

Chemical TypePlatinum-cured addition-type silicone rubber
Product FormTwo-component liquid system (Part A + Part B)
Appearance (Mixed)Translucent, low-viscosity liquid
Mixing Ratio (A:B by weight)1:1
Cure Time (23 °C / 50 % RH)~4–6 hours to handle; full cure in 24 hours
Shore A Hardness (7 days, 23 °C)70 ± 3
Tensile Strength (DIN EN ISO 37)~8.5 MPa
Elongation at Break (DIN EN ISO 37)~320 %


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