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

Dow DOWSIL 881 High Strength Glass Silicone Sealant

Dow DOWSIL 881 High Strength Glass Silicone Sealant is a premium neutral-cure silicone adhesive sealant engineered for structural glazing and high-performance glass bonding. It delivers exceptional tensile strength up to 1.2 MPa, outstanding UV resistance, and excellent adhesion to clean glass, aluminum, and anodized surfaces without primers. Fast curing, weatherproof, and compliant with ASTM C920 Type S Grade M.
  • dow dowsil 881 high strength glass silicone sealant_b44464c5
  • dow dowsil 881 high strength glass silicone sealant_b44464c5

Features Of Dow DOWSIL 881 High Strength Glass Silicone Sealant

  1. Exceptional adhesion to glass, anodized aluminum, and other non-porous substrates without primer.

  2. High tensile strength and superior modulus for structural glazing applications requiring long-term durability.

  3. Excellent resistance to UV radiation, weathering, and temperature extremes (–40 °C to +150 °C).

  4. Neutral-cure, acetoxy-free formulation minimizes corrosion risk to sensitive metals and electronics.

  5. Low VOC content compliant with major global environmental regulations including LEED and EU CE marking requirements.

Typical Applications Of Dow DOWSIL 881 High Strength Glass Silicone Sealant

  1. Structural glazing in commercial curtain walls and façade systems.

  2. Bonding and sealing of insulating glass units (IGUs) in high-performance windows.

  3. Sealing and mounting of architectural glass balustrades and railings.

  4. Weatherproofing joints between glass and metal or stone in high-rise building envelopes.

  5. Repair and retrofit sealing of existing glass assemblies where high-strength, durable adhesion is critical.

Specifications Of Dow DOWSIL 881 High Strength Glass Silicone Sealant

Chemical TypeNeutral-cure silicone elastomer
Product FormThixotropic paste in sausage cartridges (310 mL) and bulk pails (19 L)
AppearanceOpaque, uniform paste; available in clear, black, and gray
Primary ApplicationsStructural glazing, insulating glass unit (IGU) secondary seal, architectural glass bonding
Key FeaturesHigh strength, primerless adhesion to glass, UV stable, neutral cure
Shore A Hardness (7 days, 23°C/50% RH)35–45
Tensile Strength (ASTM C719)≥1.8 MPa
Service Temperature Range–40 °C to +150 °C


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