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

Wacker ELASTOSIL E50 Silicone Rubber

Wacker ELASTOSIL® E50 is a two-component addition-curing liquid silicone rubber renowned for excellent mechanical strength thermal stability and biocompatibility ideal for medical devices automotive seals and precision molding applications. It offers low viscosity easy processing and outstanding reproducibility meeting ISO 10993 and USP Class VI standards.
  • wacker elastosil e50 silicone rubber_a2858d19
  • wacker elastosil e50 silicone rubber_a2858d19

Features Of Wacker ELASTOSIL E50 Silicone Rubber

  1. High tear strength and excellent elongation for demanding dynamic sealing applications.

  2. Fast room-temperature vulcanization (RTV) with low shrinkage and minimal by-product formation.

  3. Outstanding resistance to UV radiation, ozone, and extreme temperatures (–60 °C to +200 °C).

  4. Good adhesion to common substrates including metals, glass, and plastics without primer.

  5. Low compression set ensuring long-term sealing performance under continuous load.

Typical Applications Of Wacker ELASTOSIL E50 Silicone Rubber

  1. Aerospace gaskets and vibration-damping components.

  2. Automotive engine compartment seals and sensor encapsulation.

  3. Medical device housings requiring biocompatibility-compliant silicone.

  4. Electrical insulation and potting of high-voltage electronics.

  5. Industrial machinery seals exposed to weathering and thermal cycling.

Specifications Of Wacker ELASTOSIL E50 Silicone Rubber

Chemical TypeCondensation-curing, two-component addition silicone rubber
Product FormPaste-like base component (Part A) and liquid catalyst (Part B)
AppearanceTranslucent, off-white to light amber viscous paste (Part A); clear, colorless liquid (Part B)
Primary ApplicationsSealing, bonding, potting, and encapsulation in industrial and technical environments
Key FeaturesRTV cure, low modulus, high flexibility, excellent electrical insulation
BenefitsEasy processing, no post-cure required, stable performance across wide temperature range
Shore A Hardness (7 days, 23 °C)50 ± 3
Specific Gravity (23 °C)1.12 – 1.18


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