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

Wacker POWERSIL 577 PLUS Silicone Rubber

Wacker POWERSIL 577 PLUS is a high-performance platinum-cured liquid silicone rubber (LSR) designed for precision injection molding. It offers excellent flow, low viscosity, rapid cure, and outstanding thermal/mechanical stability. Ideal for medical, automotive, and consumer electronics applications requiring biocompatibility and repeatability.
  • wacker powersil 577 plus silicone rubber_bb68fa74
  • wacker powersil 577 plus silicone rubber_bb68fa74

Features Of Wacker POWERSIL 577 PLUS Silicone Rubber

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

  2. Outstanding resistance to compression set, ensuring long-term sealing performance under continuous load.

  3. Good processability with low viscosity in uncured state, enabling efficient injection molding and extrusion.

  4. Meets FDA 21 CFR §177.2600 for indirect food contact applications.

  5. Platinum-catalyzed addition cure system offering precise control, low shrinkage, and no by-products.

Typical Applications Of Wacker POWERSIL 577 PLUS Silicone Rubber

  1. Automotive fluid handling components, including fuel and coolant system seals and gaskets.

  2. Medical device parts requiring biocompatibility and sterilization resistance (e.g., tubing, diaphragms).

  3. Industrial sealing solutions for pumps, valves, and compressors operating at elevated temperatures.

  4. Food processing equipment seals compliant with regulatory requirements for indirect food contact.

  5. Appliance gaskets for household and commercial heating, ventilation, and refrigeration systems.

Specifications Of Wacker POWERSIL 577 PLUS Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-component liquid system (Part A + Part B)
AppearanceTransparent to translucent viscous liquid
Primary ApplicationsSeals, gaskets, diaphragms, and molded elastomeric components
Key FeaturesLow compression set, high tear strength, excellent thermal stability
BenefitsLong service life, consistent dimensional stability, reliable performance across -50 °C to +200 °C
Curing MethodHeat-cured (typically 120–180 °C)
Regulatory ComplianceFDA 21 CFR §177.2600, EU Regulation (EC) No. 1935/2004


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