DOWSIL™ 791 Weatherproofing Sealant WEATHERSEALING & GLAZING SILICONE DOWSIL™ 791 Weatherproofing Silicone Sealant is a one part, low modulus, neutral curing weatherproofing silicone sealant designed for both commercial and domestic applications. It provides excellent unprimed adhesion to most porous and non-porous surfaces. Product info Benefits Excellent weathering characteristics, including resistance to ozone, UV radiation and temperature extremes Joint movement capability +/- 50% Conforms to ISO 11600-F&G-25LM and also meets ISO specification 9047 class 50% Designed for general glazing, and weather sealing in curtain wall & building facades Substrate Type Wood Glass Toughened Glass Laminate Glass Glass Sealed Units - Weatherseal Brick Stone Concrete PVCu Plastic Mill Finished Aluminium Anodised Aluminium PVF2 Aluminium Powdercoat Steel Stainless Steel Galvanised Steel Copper Brass Zinc Lead Polycarbonate Masonry MDF Stained Timber Painted Timber Technical Information Where to use: ExteriorPaintable: NoTime to cure: 24 hoursApplication method Sealant Gun and Cartridge