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

Wacker ELASTOSIL M 4615 Silicone Rubber

Wacker ELASTOSIL® M 4615 is a two-component, addition-curing liquid silicone rubber (LSR) offering excellent flowability, low viscosity, and high tear strength. Ideal for precision injection molding of medical devices, baby care items, and technical components requiring biocompatibility and thermal stability up to 200°C. Meets ISO 10993 and USP Class VI standards.
  • wacker elastosil m 4615 silicone rubber_bd55ae41
  • wacker elastosil m 4615 silicone rubber_bd55ae41

Features Of Wacker ELASTOSIL M 4615 Silicone Rubber

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

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

  3. Low compression set ensuring long-term sealing performance under sustained load.

  4. Excellent electrical insulation properties compliant with UL 94 V-0 (when compounded appropriately).

  5. Platinum-catalyzed, addition-cure system enabling precise, reproducible vulcanization without by-products.

Typical Applications Of Wacker ELASTOSIL M 4615 Silicone Rubber

  1. Automotive engine compartment seals and gaskets exposed to high temperatures and oils.

  2. Medical device components requiring biocompatibility (ISO 10993-compliant formulations).

  3. Industrial vibration dampers and shock-absorbing mounts in machinery and rail systems.

  4. Electrical insulation housings and potting compounds for power electronics and EV components.

  5. Food-contact approved seals and parts (FDA 21 CFR §177.2350 compliant when processed correctly).

Specifications Of Wacker ELASTOSIL M 4615 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-component (Part A + Part B) viscous liquid
AppearanceTranslucent, colorless to pale yellow liquid
Shore A Hardness (cured, 7 days @ 23 °C)40 ± 2
Tensile Strength (cured)≥ 7.0 MPa
Elongation at Break (cured)≥ 350 %
Compression Set (22 h @ 150 °C, ASTM D395 Method B)≤ 20 %
Curing SystemPlatinum-based addition cure; no peroxides or condensation by-products


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