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

Wacker ELASTOSIL M 4601 A B Two-Component Silicone Rubber

Wacker ELASTOSIL® M 4601 A/B is a two-component addition-curing silicone rubber offering excellent mechanical strength thermal stability and low compression set. Ideal for precision molding of seals gaskets and technical parts in automotive medical and industrial applications. Fast curing at room or elevated temperatures with outstanding reproducibility and biocompatibility per ISO 10993.
  • wacker elastosil m 4601 a b two component silicone rubber_eb951050
  • wacker elastosil m 4601 a b two component silicone rubber_eb951050

Features Of Wacker ELASTOSIL M 4601 A B Two-Component Silicone Rubber

  1. High tear strength and excellent elongation at break for demanding mechanical performance.

  2. Fast room-temperature curing (RTV-2) with balanced pot life and demold time.

  3. Outstanding thermal stability across –60 °C to +200 °C continuous service range.

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

  5. Biocompatibility compliant with ISO 10993-5 and USP Class VI for medical-grade applications.

Typical Applications Of Wacker ELASTOSIL M 4601 A B Two-Component Silicone Rubber

  1. Medical device components including seals, gaskets, and fluid-contact parts.

  2. Automotive sensor housings and vibration-damping mounts requiring thermal resilience.

  3. Consumer electronics encapsulation and protective overmolding for precision assemblies.

  4. Industrial sealing systems for pumps, valves, and pneumatic actuators.

  5. Food-grade equipment gaskets certified to FDA 21 CFR 177.2600 requirements.

Specifications Of Wacker ELASTOSIL M 4601 A B Two-Component Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-component liquid system (Part A + Part B)
AppearanceTranslucent, low-viscosity liquids (Part A: colorless; Part B: pale yellow)
Primary ApplicationsSealing, molding, encapsulation, and overmolding
Key FeaturesLow shrinkage, no by-products, excellent adhesion to substrates
BenefitsProcess reliability, consistent part quality, minimal post-curing requirement
Curing Temperature RangeRoom temperature to 120 °C (accelerated cure possible)
Shelf Life (unopened, 25 °C)12 months from date of manufacture


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