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

Wacker ELASTOSIL M 4601 Silicone Rubber

Wacker ELASTOSIL® M 4601 is a platinum-cured, two-component addition-cure liquid silicone rubber offering excellent mechanical strength, thermal stability up to 200°C, and outstanding transparency. Ideal for medical devices, baby products, and precision molding due to its low viscosity, fast cure, and biocompatibility per ISO 10993.
  • wacker elastosil m 4601 silicone rubber_e0c30791
  • wacker elastosil m 4601 silicone rubber_e0c30791

Features Of Wacker ELASTOSIL M 4601 Silicone Rubber

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

  2. Platinum-catalyzed addition-cure system enabling precise, reproducible processing with low shrinkage.

  3. Outstanding thermal stability over a wide service temperature range (–60 °C to +200 °C).

  4. Low compression set ensuring long-term sealing integrity under continuous load.

  5. Biocompatibility compliant with USP Class VI and ISO 10993-5/10 for medical-grade use.

Typical Applications Of Wacker ELASTOSIL M 4601 Silicone Rubber

  1. Medical device components including tubing, seals, and implantable housing gaskets.

  2. Pharmaceutical processing equipment parts requiring cleanroom compatibility and extractables control.

  3. Automotive fluid-handling seals exposed to oils, coolants, and elevated temperatures.

  4. Consumer healthcare devices such as wearable sensors and skin-contact interfaces.

  5. Food-contact compliant gaskets and seals in processing machinery per FDA 21 CFR §177.2600.

Specifications Of Wacker ELASTOSIL M 4601 Silicone Rubber

Chemical TypePlatinum-cured high-consistency silicone rubber (HCR)
Product FormTwo-component kit (Part A: base compound; Part B: platinum catalyst)
AppearancePearl-white, homogeneous gum-like compound
Shore A Hardness (ASTM D2240)60 ± 3
Tensile Strength (ASTM D412)≥ 8.0 MPa
Elongation at Break (ASTM D412)≥ 450 %
Compression Set (ASTM D395, 70 h @ 175 °C)≤ 25 %
Key CertificationsUSP Class VI, ISO 10993-5/10, FDA 21 CFR §177.2600


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