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

Dow DOWSIL EL-9140 DM Silicone Elastomer Blend

Dow DOWSIL EL-9140 DM is a high-performance silicone elastomer blend from Dow’s DOWSIL EL Series, engineered for exceptional flexibility, thermal stability, and compression set resistance—ideal for demanding sealing, gasketing, and vibration-damping applications across automotive, electronics, and industrial sectors.
  • dow dowsil el 9140 dm silicone elastomer blend_19415afd
  • dow dowsil el 9140 dm silicone elastomer blend_19415afd

Features Of Dow DOWSIL EL-9140 DM Silicone Elastomer Blend

  1. High-performance silicone elastomer blend offering excellent thermal stability up to 200 °C continuous use.

  2. Combines low compression set with superior elasticity for long-term sealing and gasketing performance.

  3. Ready-to-mold formulation requiring no additional catalyst or crosslinker—simplifies processing and reduces scrap.

  4. Excellent electrical insulation properties with stable dielectric constant across wide temperature and frequency ranges.

  5. Meets UL 94 HB flammability rating and complies with RoHS and REACH regulatory requirements.

Typical Applications Of Dow DOWSIL EL-9140 DM Silicone Elastomer Blend

  1. Automotive under-hood components including sensor housings, ignition boots, and coolant system seals.

  2. Consumer electronics encapsulation and vibration-damping mounts for wearables and portable devices.

  3. Industrial fluid handling gaskets and diaphragms exposed to oils, coolants, and mild chemicals.

  4. Medical device enclosures and non-invasive wearable sensor interfaces requiring biocompatibility support (ISO 10993 tested).

  5. LED lighting thermal interface pads and optical lens bonding layers leveraging low outgassing and UV resistance.

Specifications Of Dow DOWSIL EL-9140 DM Silicone Elastomer Blend

Chemical TypePlatinum-cured methylvinylsiloxane-based silicone elastomer blend
Product FormTwo-part liquid (Part A + Part B), pre-measured for 1:1 mix ratio by weight
AppearanceTranslucent, low-viscosity liquid (Part A); colorless to pale amber liquid (Part B)
Shore A Hardness (7 days @ 25 °C)40 ± 3
Tensile Strength (ASTM D412)8.5 MPa typical
Elongation at Break (ASTM D412)420% typical
Volume Resistivity (ASTM D257)1.2 × 10¹⁵ Ω·cm
Key BenefitsProcess efficiency, consistent cure profile, low post-cure shrinkage, and high reliability in dynamic environments


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