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

Dow DOWSIL 7091 Silicone Adhesive Sealant

Dow DOWSIL 7091 Silicone Adhesive Sealant is a high-performance, one-component, moisture-curing silicone sealant offering excellent adhesion to glass, aluminum, and coated metals. It delivers superior UV resistance, thermal stability from −40°C to 200°C, low modulus elasticity, and outstanding durability in structural glazing and façade applications.
  • dow dowsil 7091 silicone adhesive sealant_9d3dcb2d
  • dow dowsil 7091 silicone adhesive sealant_9d3dcb2d

Features Of Dow DOWSIL 7091 Silicone Adhesive Sealant

  1. High-performance, one-component, moisture-curing silicone adhesive sealant with excellent adhesion to glass, aluminum, and painted metal substrates.

  2. Offers superior resistance to UV radiation, ozone, and extreme temperatures ranging from –40 °C to +150 °C.

  3. Low modulus formulation provides exceptional flexibility and stress relief for bonded assemblies subject to thermal cycling or vibration.

  4. Non-corrosive, acetoxy-cure chemistry ensures compatibility with sensitive electronic components and architectural metals.

  5. Meets ASTM C920 Type S, Grade NS, Class 25, T, NT performance requirements for structural glazing sealants.

Typical Applications Of Dow DOWSIL 7091 Silicone Adhesive Sealant

  1. Structural glazing in commercial curtain wall systems.

  2. Bonding and sealing of insulating glass (IG) units.

  3. Adhesive bonding of aluminum composite panels (ACP) and metal façade elements.

  4. Sealing and mounting of photovoltaic module frames and solar racking components.

  5. Interior and exterior architectural bonding where high durability and weather resistance are required.

Specifications Of Dow DOWSIL 7091 Silicone Adhesive Sealant

Chemical TypeAcetoxy-cure silicone polymer
Product FormThixotropic paste, ready-to-use
AppearanceOpaque white or translucent gray (color options available)
Primary ApplicationsStructural glazing, IG unit assembly, architectural metal bonding
Key FeaturesUV stable, non-corrosive, low modulus, moisture-curing
Shore A Hardness (7 days, 23°C/50% RH)20–25
Tensile Strength (ASTM D412)1.8–2.2 MPa
Service Temperature Range–40 °C to +150 °C


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