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

Wacker ELASTOSIL N189 Silicone Rubber

Wacker ELASTOSIL® N189 is a high-consistency, platinum-cured silicone rubber offering excellent mechanical strength, thermal stability up to 200°C, and outstanding electrical insulation. Ideal for demanding industrial molding, sealing, and gasketing applications requiring precision, durability, and biocompatibility compliance.
  • wacker elastosil n189 silicone rubber_9f9a0928
  • wacker elastosil n189 silicone rubber_9f9a0928

Features Of Wacker ELASTOSIL N189 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 and EU Regulation (EC) No. 1935/2004 for food-contact applications.

  5. Excellent thermal stability across a wide service temperature range of –60 °C to +200 °C.

Typical Applications Of Wacker ELASTOSIL N189 Silicone Rubber

  1. Automotive fluid seals and gaskets exposed to engine oils and coolants.

  2. Food and beverage processing equipment seals requiring regulatory compliance.

  3. Medical device components such as pump diaphragms and tubing connectors.

  4. Industrial HVAC system vibration dampers and expansion joints.

  5. Electrical insulation parts for high-reliability power distribution systems.

Specifications Of Wacker ELASTOSIL N189 Silicone Rubber

Chemical TypePlatinum-cured liquid silicone rubber (LSR)
Product FormTwo-component (Part A + Part B), ready-to-mix liquid
Appearance (Uncured)Pale yellow, translucent liquid
Shore A Hardness (Cured)18 ± 2
Tensile Strength (Cured)Approx. 5.5 MPa
Elongation at Break (Cured)Approx. 550 %
Cure SystemPt-catalyzed addition cure
Primary ApplicationsSeals, gaskets, diaphragms, soft-touch overmolding


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *