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DOWSIL 791 Silicone Weatherproofing Sealant 10oz. Cartridge - MasonryDirect.com

DOWSIL 791 Silicone Weatherproofing Sealant 10.3oz Cartridge


Regular price $12.49 $6.44 Sale

A one-part, medium-modulus, elastomeric sealant designed for general weathersealing. It is a silicone formulation that cures to a flexible and curable silicone rubber building joint seal.


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

  • Adhesion to Enamelled and Reflective Glass, Extruded Mill Finish, Fluorocarbon Coated Aluminum, Glass, Granite, Alodine Aluminum, Heat Strengthened Glass, Light-Weight Stone Panels, Low E Coated Glass, Marble, Masonry, Metal, Metal Panels, Paint, Aluminum, Plastic, Polyester Powder Coated Aluminum/Steel, Silicone, Stone, Steel, Stainless Steel, Vinyl/PVC-U, Wood, Anodized Aluminum, Limestone, Brickwork, Concrete
  • Application Temperature Range 4 to 40 °C
  • Color: Black, Bronze, Grey, Limestone, Precast White, White, Custom, Dark Grey, Metal Grey
  • Durometer - Shore A 25 to 30 Shore A
  • Flow/Sag (Slump) 0 mm
  • Movement Capability -50 to 50 %
  • Primerless Adhesion Primerless
  • Room Temperature Cure - Days 7 to 14 Days
  • Service Temperature High 150 °C
  • Service Temperature Low -50 °C
  • Specific Gravity @ 25C 1.51
  • Tack-Free Time-50% RH 45 Minutes
  • Tensile Adhesion (T/A) 120 psi
  • Volatile Organic Content 45 g/liter
  • Working Time 20 Minutes

One of the most economical options for quality silicone weathersealing, DOWSIL™ 791 Silicone Weatherproofing Sealant is a neutral-cure, one-part sealant that quickly cures to a durable, flexible seal that can accommodate significant joint movement. Especially suited for perimeter sealing around doors and windows, it's also excellent for sealing expansion and control joints, precast concrete panels, curtainwall and mullion joints, and internal seals and end dams.