Northland Construction Supplies

Dow Corning® 999-A Silicone Building & Glazing Sealant is an easily applied, one-part sealant that cures in the presence of atmospheric moisture to produce a durable and flexible glazing and curtainwall seal.

Features and Benefits

• Resistant to sunlight, rain, sleet,snow, ultraviolet radiation, ozone and temperature extreme
• Retains design properties even after years of exposure – seals remain watertight and weatherproof
• Wide service temperature range from -60 to 177°C (-76 to 350°F) with intermittent temperatures up to 200°C (392°F)

Applications

Dow Corning® 999-A Silicone Building & Glazing Sealant is intended for general construction applications. It may be applied as a primary seal to most glass, plastic and metal assemblies if tested and shown to be acceptable for the intended use.

Typical Properties

• Color White
• Durometer - Shore A = 25 Shore A
• Peel Strength = 20 ppi
• Service Temperature High = 177 Deg C
• Service Temperature Low = -60 Deg C
• Tack-Free Time-50% RH 10 Minutes
• Tack-Free Time-50% RH 20 Minutes
• Tear Strength = 25 ppi
• Tensile Strength = 325 psi
• Volatile Organic Content = 40 g/liter
• Water Resistant

Characteristics

• Adhesion to Alodine Aluminum
• Adhesion to Aluminum
• Adhesion to Anodized Aluminum
• Adhesion to Ceramic
• Adhesion to Glass
• Adhesion to Heat Strengthened Glass
• Adhesion to Low E Coated Glass
• Adhesion to Metal
• Adhesion to Paint
• Adhesion to Steel
• Primerless Adhesion
• Condesation Cure
• General properties Tooling Required
• One-Part
• Ozone Resistance
• Thermal Resistence
• UV Resistance
• Water Resistance

Dow 999 Caulking is Also Available in Clear.