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DOWSIL™ 899 Silicone Glazing Sealant

A one-part, neutral cure, RTV sealant that cures in the presence of atmospheric moisture. This product exhibits excellent unprimed adhesion to most construction materials.


These values are typical properties and are not intended for use in preparing specifications.

  • Adhesion to Glass, Heat Strengthened Glass, Low E Coated Glass, Paint, Aluminum, Plastic, Vinyl/PVC-U, Wood
  • Color Clear, Grey
  • Cure Type Neutral Cure
  • Durometer - Shore A 35 Shore A
  • Elongation 500 %
  • Flow/Sag (Slump) < 0.5 mm
  • Modulus @100% Elongation, maximum 55 psi
  • Movement Capability -25 to 25 %
  • Number of Parts One
  • Primerless Adhesion Primerless
  • Resistance Type Thermal Resistance, UV Resistance, Water Resistance
  • Shelf Life 360 Days
  • Specific Gravity @ 25C 1.05
  • Tack-Free Time-50% RH 6 Minutes
  • Temperature Range -40 to 149 °C
  • Tensile Strength 275 psi
  • Water Resistant true
  • DOWSIL™ Primer-C
    A solventbased silane adhesion promoter for use in construction applications for painted surfaces.

No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.

No sales specification could be found for this material in selected language

DOWSIL™ 899 Silicone Glazing Sealant
No Technical Data Sheets are available for this product
Please Contact Dow for additional information.

DOWSIL™ 899 Silicone Glazing Sealant

No Regulatory Data Sheets are available for this product

DOWSIL™ 899 Silicone Glazing Sealant
Please Contact Dow for distribution options available for this product.