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

Dow DOWSIL 3-6121 Silicone Rubber

Dow DOWSIL 3-6121 Silicone Rubber is a two-part, addition-cure liquid silicone elastomer offering excellent thermal stability, low compression set, and biocompatibility per ISO 10993. Ideal for medical tubing, seals, and precision molded parts requiring FDA-compliant materials and consistent high-performance curing.
  • dow dowsil 3 6121 silicone rubber_336c2c57
  • dow dowsil 3 6121 silicone rubber_336c2c57

Features Of Dow DOWSIL 3-6121 Silicone Rubber

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

  2. Fast room-temperature vulcanization (RTV) with low compression set after curing.

  3. Outstanding resistance to weathering, UV exposure, and extreme temperatures (–60 °C to 200 °C).

  4. Good adhesion to common substrates including metals, glass, and plastics without primer.

  5. Low volatility and compliant with ISO 10993-5 for cytotoxicity screening in medical-adjacent uses.

Typical Applications Of Dow DOWSIL 3-6121 Silicone Rubber

  1. Automotive gaskets and vibration-damping mounts for powertrain and chassis systems.

  2. Industrial enclosures and housings requiring environmental sealing against dust, moisture, and thermal cycling.

  3. Electrical insulation and potting of sensors, connectors, and control modules.

  4. Consumer appliance seals for cooktops, ovens, and HVAC components.

  5. Medical device housing seals where biocompatibility and long-term stability are critical.

Specifications Of Dow DOWSIL 3-6121 Silicone Rubber

Chemical TypePlatinum-cured addition-cure silicone rubber
Product FormTwo-component liquid (Part A + Part B)
AppearanceTranslucent to milky white viscous liquid
Primary ApplicationsSealing, gasketing, potting, and encapsulation
Key FeaturesRTV cure, high elasticity, low compression set, excellent adhesion
BenefitsReduced assembly time, extended service life, minimal maintenance
Cure MechanismAddition reaction (no by-products)
Shelf Life12 months unopened at 25 °C in original packaging


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

Your Name *

Your Email *

Your Phone

Country

Your Message *