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

Wacker ELASTOSIL M 4670 Silicone Rubber

Wacker ELASTOSIL® M 4670 is a two-component addition-curing liquid silicone rubber renowned for excellent mechanical strength thermal stability and biocompatibility ideal for medical device encapsulation and precision molding applications.
  • wacker elastosil m 4670 silicone rubber_0dd9eb75
  • wacker elastosil m 4670 silicone rubber_0dd9eb75

Features Of Wacker ELASTOSIL M 4670 Silicone Rubber

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

  2. Platinum-catalyzed addition cure system ensuring low shrinkage and precise dimensional stability.

  3. Outstanding biocompatibility, compliant with USP Class VI and ISO 10993-5/-10 testing standards.

  4. Excellent resistance to aging, UV radiation, and extreme temperatures (–60 °C to +200 °C).

  5. Low compression set and superior resilience for long-term sealing and gasket performance.

Typical Applications Of Wacker ELASTOSIL M 4670 Silicone Rubber

  1. Medical device components including tubing, seals, and implantable-grade parts.

  2. Pharmaceutical processing equipment gaskets and diaphragms requiring cleanroom compatibility.

  3. Automotive sensors and under-hood sealing solutions exposed to thermal cycling.

  4. Food-contact approved parts such as pump components and sanitary fittings.

  5. Precision molded parts for electronics encapsulation and protective housings.

Specifications Of Wacker ELASTOSIL M 4670 Silicone Rubber

Chemical TypePlatinum-cured high-consistency silicone rubber (HCR)
Product FormTwo-component compound (Part A: base; Part B: catalyst)
AppearanceOpaque, off-white to light beige gum-like mass
Hardness (Shore A, ISO 48-4)60 ± 3
Tensile Strength (ISO 37)≥ 8.0 MPa
Elongation at Break (ISO 37)≥ 450 %
Compression Set (ISO 815, 24 h @ 150 °C)≤ 25 %
BiocompatibilityUSP Class VI and ISO 10993-5/-10 compliant


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