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

Wacker ELASTOSIL 4500 Silicone Rubber

Wacker ELASTOSIL® 4500 is a two-component, addition-cure liquid silicone rubber (LSR) offering excellent mechanical strength, thermal stability up to 200°C, and outstanding flow for precision molding of medical, automotive, and consumer parts. It cures rapidly at elevated temperatures with low compression set and high tear resistance—ideal for high-volume injection molding applications.
  • wacker elastosil 4500 silicone rubber_5f34a6ca
  • wacker elastosil 4500 silicone rubber_5f34a6ca

Features Of Wacker ELASTOSIL 4500 Silicone Rubber

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

  2. Platinum-catalyzed addition-cure system enabling precise, reproducible vulcanization without by-products.

  3. Outstanding thermal stability with continuous service capability from –60 °C to +180 °C.

  4. Low compression set ensuring long-term sealing performance under sustained load.

  5. Excellent electrical insulation properties and UL 94 V-0 flammability rating (when compounded appropriately).

Typical Applications Of Wacker ELASTOSIL 4500 Silicone Rubber

  1. Automotive engine compartment gaskets and vibration-damping mounts.

  2. Medical device components requiring biocompatibility (ISO 10993-tested formulations).

  3. Industrial sealing systems for pumps, valves, and fluid-handling equipment.

  4. Electrical insulation parts in high-voltage connectors and power electronics housings.

  5. Food-contact compliant seals and gaskets (FDA 21 CFR §177.2600 compliant when processed correctly).

Specifications Of Wacker ELASTOSIL 4500 Silicone Rubber

Chemical TypePlatinum-cured addition silicone rubber
Product FormTwo-component liquid system (Part A: base; Part B: catalyst)
AppearanceTranslucent, low-viscosity liquid (Part A); colorless to pale yellow liquid (Part B)
Shore A Hardness (cured, 7 days @ 23 °C/50% RH)45 ± 2
Tensile Strength (cured, ISO 37)8.5–9.5 MPa
Elongation at Break (cured, ISO 37)≥ 350 %
Density (cured, ISO 2781)1.12–1.16 g/cm³
Primary ApplicationsSealing, encapsulation, and precision molding in automotive, medical, and industrial sectors


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

Your Name *

Your Email *

Your Phone

Country

Your Message *