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

Wacker ELASTOSIL RT 601 Silicone Rubber

Wacker ELASTOSIL® RT 601 is a two-component, addition-curing liquid silicone rubber offering excellent flowability, low viscosity, and outstanding mechanical properties after curing. Ideal for precision casting, medical device molding, and industrial prototyping, it delivers high tear strength, thermal stability, and biocompatibility per ISO 10993. Fast room-temperature cure with minimal shrinkage ensures dimensional accuracy and repeatability.
  • wacker elastosil rt 601 silicone rubber_673106b4
  • wacker elastosil rt 601 silicone rubber_673106b4

Features Of Wacker ELASTOSIL RT 601 Silicone Rubber

  1. Two-component, addition-cure liquid silicone rubber with excellent flowability and low viscosity for precise mold filling.

  2. Fast room-temperature or elevated-temperature curing without by-products, ensuring high dimensional stability and minimal shrinkage.

  3. Outstanding thermal resistance, maintaining mechanical integrity from –50 °C to +180 °C after vulcanization.

  4. Excellent electrical insulation properties and UL 94 V-0 flammability rating (when compounded with approved fillers).

  5. Biocompatibility compliant with ISO 10993–5 and USP Class VI (subject to final formulation and processing conditions).

Typical Applications Of Wacker ELASTOSIL RT 601 Silicone Rubber

  1. Medical device components including seals, gaskets, tubing connectors, and wearable sensor housings.

  2. Electrical and electronic encapsulation for sensors, connectors, LED modules, and power supply units.

  3. Automotive under-hood sealing elements requiring resistance to heat, oils, and vibration.

  4. Industrial precision parts such as soft-touch grips, membrane switches, and custom elastomeric actuators.

  5. Consumer electronics protective components including waterproof seals, button pads, and haptic feedback elements.

Specifications Of Wacker ELASTOSIL RT 601 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-part system: Part A (base) and Part B (catalyst), supplied separately
Appearance (Part A)Translucent, low-viscosity liquid
Appearance (Part B)Translucent, low-viscosity liquid
Mixing Ratio (A:B)10:1 by weight
Curing Temperature RangeRT to 150 °C (typical cure: 24 h at 23 °C or 10 min at 120 °C)
Shore A Hardness (Cured)60 ± 3
Primary ApplicationsEncapsulation, sealing, molding of high-precision elastomeric parts


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