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

Wacker ELASTOSIL M 4630 A B Two-Component Silicone Rubber

Wacker ELASTOSIL® M 4630 A/B is a two-component addition-curing silicone rubber offering excellent tear strength, low compression set, and outstanding thermal stability from –60 °C to +180 °C; ideal for precision molds, gaskets, and technical elastomer parts requiring high reproducibility and biocompatibility per ISO 10993.
  • wacker elastosil m 4630 a b two component silicone rubber_aad89018
  • wacker elastosil m 4630 a b two component silicone rubber_aad89018

Features Of Wacker ELASTOSIL M 4630 A B Two-Component Silicone Rubber

  1. High tear strength and excellent elongation at break for demanding mechanical performance.

  2. Fast room-temperature vulcanization (RTV) with low mixed viscosity for easy processing and air bubble elimination.

  3. Outstanding thermal stability and long-term aging resistance from –60 °C to +180 °C.

  4. Excellent electrical insulation properties and low dielectric loss across wide frequency ranges.

  5. Biocompatibility compliant with ISO 10993-5 and USP Class VI, suitable for medical device components.

Typical Applications Of Wacker ELASTOSIL M 4630 A B Two-Component Silicone Rubber

  1. Medical-grade seals and gaskets for diagnostic equipment and drug delivery systems.

  2. Encapsulation of sensitive electronic components in automotive and industrial control units.

  3. Flexible molds for precision casting of polyurethane and epoxy parts.

  4. Dynamic sealing elements in HVAC and fluid handling systems requiring high resilience.

  5. Custom silicone parts for wearable health monitoring devices and implantable sensor housings.

Specifications Of Wacker ELASTOSIL M 4630 A B Two-Component Silicone Rubber

Chemical TypePlatinum-cured addition-cure silicone rubber
Product FormTwo-component liquid system (Part A: base, Part B: catalyst)
AppearancePart A: translucent viscous liquid; Part B: translucent low-viscosity liquid
Mixing Ratio (A:B by weight)10:1
Cure Time (23 °C / 50% RH)Surface tack-free in ~30 minutes; full cure in 24 hours
Hardness (Shore A, cured)40 ± 2
Tensile Strength (cured)8.5 MPa (ISO 37)
Elongation at Break (cured)450% (ISO 37)


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

Your Name *

Your Email *

Your Phone

Country

Your Message *