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

Wacker ELASTOSIL M 4514 Silicone Rubber

Wacker ELASTOSIL® M 4514 is a two-component, addition-cure liquid silicone rubber (LSR) offering excellent flowability, low viscosity, and high tear strength. Ideal for precision injection molding of medical devices, baby products, and technical parts requiring biocompatibility and thermal stability up to 200°C. Meets ISO 10993 and USP Class VI standards.
  • wacker elastosil m 4514 silicone rubber_c97971f5
  • wacker elastosil m 4514 silicone rubber_c97971f5

Features Of Wacker ELASTOSIL M 4514 Silicone Rubber

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

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

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

  4. Platinum-catalyzed addition cure system offering precise control over pot life and cure kinetics.

  5. Biocompatibility compliant with USP Class VI and ISO 10993–1 (when fully cured), suitable for medical-grade use.

Typical Applications Of Wacker ELASTOSIL M 4514 Silicone Rubber

  1. Medical device components including tubing connectors, respiratory masks, and implantable housing seals.

  2. Automotive fluid-handling gaskets and vibration-damping mounts exposed to oils and temperature extremes.

  3. Consumer electronics encapsulation and protective seals requiring high clarity and electrical insulation.

  4. Food-contact approved seals and gaskets for processing equipment (compliant with FDA 21 CFR §177.2600).

  5. Industrial precision parts such as metering pump diaphragms and sensor housings requiring dimensional stability.

Specifications Of Wacker ELASTOSIL M 4514 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-curing liquid silicone rubber (LSR)
Product FormTwo-component (Part A + Part B) viscous liquid
Appearance (Uncured)Translucent, pale yellow liquid
Cure Temperature Range100–180 °C (recommended: 150 °C for 5–10 min)
Shore A Hardness (Cured)45 ± 2
Tensile Strength (Cured)≈ 7.0 MPa (ASTM D412)
Elongation at Break (Cured)≈ 550 % (ASTM D412)
Specific Gravity (Uncured)1.12–1.15 (25 °C)


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