Dowsil 791 Weatherproof Outdoor Silicone Sealant

This 310ml cartridge of Dowsil™ 791 in White is the perfect choice for weatherproofing applications requiring a clean, bright finish. The white colour provides excellent colour matching with white UPVC windows, doors, cladding and painted surfaces, making it ideal for residential properties and commercial buildings with light-coloured exteriors. Formulated as a one-part neutral cure silicone for weather sealing, it offers exceptional adhesion to most exterior substrates whilst providing outstanding resistance to ozone, UV radiation and temperature extremes. Suitable for both commercial and domestic projects, this sealant delivers reliable, long-lasting performance in all outdoor conditions. With a rapid 20-minute skin over time and tack-free in just 45 minutes, it enables efficient application and quick project turnaround. The convenient 310ml cartridge format fits standard sealant guns, making it practical for professional tradespeople tackling multiple installations. Features and Benefits: • White colour ideal for UPVC and painted surfaces • 310ml cartridge fits standard sealant guns • Fast 20-minute skin over time • Conforms to ISO 11600-25LM and ISO 9047 class 50 • Excellent weathering resistance for exterior use Specifications: Colour: White Size (ml): 310