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

Dow DOWSIL Membrane Outside Silicone Rubber

Dow DOWSIL Membrane Outside Silicone Rubber is a high-performance liquid silicone rubber (LSR) engineered for membrane applications requiring exceptional tear strength, UV resistance, and long-term outdoor durability. Part of Dow’s trusted DOWSIL LSR portfolio, it offers precise flow control, low compression set, and seamless adhesion to substrates—ideal for automotive sensors, medical wearables, and industrial enclosures.
  • dow dowsil membrane outside silicone rubber_1dab5d97
  • dow dowsil membrane outside silicone rubber_1dab5d97

Features Of Dow DOWSIL Membrane Outside Silicone Rubber

  1. Highly durable silicone elastomer engineered for long-term outdoor exposure and UV resistance.

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

  3. Low compression set ensures reliable sealing performance over extended service life.

  4. Good resistance to ozone, weathering, and atmospheric pollutants.

  5. Easy to process via extrusion or calendering for continuous membrane production.

Typical Applications Of Dow DOWSIL Membrane Outside Silicone Rubber

  1. Exterior architectural membranes for façades and tensile roof structures.

  2. Weather-resistant gaskets and seals in HVAC rooftop units.

  3. Protective encapsulation layers for outdoor photovoltaic module backsheets.

  4. Flexible barriers in industrial air filtration systems exposed to ambient conditions.

Specifications Of Dow DOWSIL Membrane Outside Silicone Rubber

Chemical TypeHigh-consistency silicone rubber (HCR), methyl vinyl silicone polymer base
Product FormUncured sheet or roll stock (ready for vulcanization)
AppearanceTranslucent to opaque, uniform sheet with smooth surface finish
Primary ApplicationsOutdoor-exposed membranes, weather-sealing components, protective barriers
Key FeaturesUV-stable, ozone-resistant, thermally robust, low compression set
BenefitsExtended service life in harsh environments, minimal maintenance, consistent dimensional stability
Curing SystemPeroxide-curable (requires heat activation)


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