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

Wacker ELASTOSIL M 4512 Silicone Rubber

Wacker ELASTOSIL® M 4512 is a two-component addition-curing liquid silicone rubber (LSR) offering excellent flowability, low viscosity, and high tear strength. Ideal for precision injection molding of medical devices, baby care products, and technical components requiring biocompatibility per ISO 10993 and USP Class VI compliance.
  • wacker elastosil m 4512 silicone rubber_3fdac999
  • wacker elastosil m 4512 silicone rubber_3fdac999

Features Of Wacker ELASTOSIL M 4512 Silicone Rubber

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

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

  3. Platinum-catalyzed addition cure system with low shrinkage and precise dimensional stability.

  4. Biocompatibility compliant with USP Class VI and ISO 10993-5/10 for medical device use.

  5. Excellent thermal stability across a wide operating temperature range (–60 °C to +200 °C).

Typical Applications Of Wacker ELASTOSIL M 4512 Silicone Rubber

  1. Medical tubing and fluid-handling components in diagnostic and therapeutic devices.

  2. Seals and gaskets for pharmaceutical processing equipment requiring cleanroom compatibility.

  3. Encapsulants and protective coatings for sensitive electronic sensors and implantable modules.

  4. Soft-touch grips and ergonomic housings for handheld medical instruments.

  5. Custom-molded parts for drug delivery systems, including inhaler components and pump diaphragms.

Specifications Of Wacker ELASTOSIL M 4512 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-curing silicone rubber
Product FormTwo-component liquid silicone rubber (LSR), Part A + Part B
AppearanceTranslucent, low-viscosity liquid (Part A); translucent liquid catalyst (Part B)
Shore A Hardness (7 days, 23 °C)45 ± 2
Tensile Strength (ISO 37)≈ 8.5 MPa
Elongation at Break (ISO 37)≈ 550 %
Cure Temperature Range100–180 °C (time-dependent)
ComplianceUSP Class VI, ISO 10993-5 & -10, FDA 21 CFR 177.2600


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