Dow Corning 791 is a one part, weatherproofing silicone sealant that gives excellent unprimed adhesion to most porous and non-porous construction substrates including brickwork, masonry, timber, PVC, glass and most metals.
- Highly flexible.
- Joint movement capability +/- 50%.
- Excellent weathering characteristics, including resistance to ozone, UV radiation and temperature extremes.
- Conforms to ISO 11600-F&G-25LM and also meets ISO specification 9047 class 50%.
- 20-30 minutes working time.
- Fast cure – tack free in 2 hours.
- Application Temperature Range -25 to +50°C