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

Dow DOWSIL XTI-1003 Silicone Rubber

Dow DOWSIL XTI-1003 Silicone Rubber is a high-strength, fast-curing liquid silicone rubber (LSR) from Dow’s DOWSIL XTI series. It offers excellent tear resistance, low compression set, and outstanding thermal stability for demanding automotive and medical applications. Ideal for injection molding, it delivers consistent performance and biocompatibility per ISO 10993.
  • dow dowsil xti 1003 silicone rubber_db3b98b4
  • dow dowsil xti 1003 silicone rubber_db3b98b4

Features Of Dow DOWSIL XTI-1003 Silicone Rubber

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

  2. Fast room-temperature vulcanization (RTV) with low modulus and high flexibility after cure.

  3. Outstanding resistance to ozone, UV radiation, and extreme temperatures (–55 °C to 200 °C).

  4. Low compression set ensuring long-term sealing performance under continuous stress.

  5. Excellent adhesion to common substrates including metals, glass, and plastics without primers.

Typical Applications Of Dow DOWSIL XTI-1003 Silicone Rubber

  1. Aerospace gaskets and vibration-damping mounts.

  2. Automotive engine compartment seals and sensor encapsulants.

  3. Industrial equipment housings requiring environmental protection and thermal stability.

  4. Electrical insulation and potting for high-reliability power electronics.

  5. Medical device enclosures meeting ISO 10993 biocompatibility screening requirements.

Specifications Of Dow DOWSIL XTI-1003 Silicone Rubber

Chemical TypePlatinum-cured addition-cure silicone rubber
Product FormTwo-component liquid (Part A + Part B)
Appearance (Uncured)Translucent, low-viscosity liquid
Cure SystemRoom-temperature vulcanization (RTV), 1:1 mix ratio by volume
Shore A Hardness (7 days @ 23 °C)30 ± 3
Tensile Strength (ASTM D412)6.5 MPa typical
Elongation at Break (ASTM D412)550% typical
Primary ApplicationsSealing, bonding, potting, and gasketing in high-performance industrial environments


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