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

Wacker ELASTOSIL P 7671 A B Two-Component Silicone Rubber

Wacker ELASTOSIL® P 7671 A/B is a platinum-catalyzed two-component addition-cure silicone rubber offering excellent flowability, low viscosity, and outstanding mechanical properties after curing—ideal for precision casting, soft tooling, and medical-grade replicas.
  • wacker elastosil p 7671 a b two component silicone rubber_918fb514
  • wacker elastosil p 7671 a b two component silicone rubber_918fb514

Features Of Wacker ELASTOSIL P 7671 A B Two-Component Silicone Rubber

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

  2. Fast room-temperature vulcanization (RTV) with low mixed viscosity for easy processing and air bubble elimination.

  3. Outstanding thermal stability and long-term performance over a wide temperature range (–60 °C to +180 °C).

  4. Excellent electrical insulation properties and UL 94 HB flame retardancy rating.

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

Typical Applications Of Wacker ELASTOSIL P 7671 A B Two-Component Silicone Rubber

  1. Sealing and potting of electronic components and sensors in automotive ECUs.

  2. Encapsulation of LED modules and power electronics requiring thermal management.

  3. Manufacturing of flexible gaskets and vibration-damping elements for industrial equipment.

  4. Prototyping and low-volume production of medical device housings compliant with ISO 10993-5 cytotoxicity requirements.

  5. Custom-molded parts for HVAC systems exposed to moisture, ozone, and temperature cycling.

Specifications Of Wacker ELASTOSIL P 7671 A B Two-Component Silicone Rubber

Chemical TypePlatinum-cured addition-cure silicone rubber
Product FormTwo-component liquid system (Part A: base, Part B: catalyst)
Appearance (Mixed)Translucent, low-viscosity liquid
Mixing Ratio (A:B by weight)10 : 1
Cure Time (23 °C / 50% RH)Surface tack-free in ~30 min; full cure in 24 h
Shore A Hardness (7 days, 23 °C)65 ± 3
Tensile Strength (ISO 37)~8.5 MPa
Elongation at Break (ISO 37)~350 %


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