Dow Corning Firestop 400 Sealant White 380ml

£1.58 per 100ML, An intumescent acrylic sealant for internal applications that does not emit halogenated by-products under fire conditions. Developed to maintain the integrity of fire walls or partitions Tested to B.S.476 Part 22: 1987 and B.S.476 Part 7: 1987 Up to 4 hour fire rating can be achieved Class 2 classification for surface spread of flame Mean toxicity index 2.0 when tested to NES713: 1985 Resistant to mildew and mould growth Tack free time-30 to 45 minutes Good unprimed adhesion to most construction substrates Uses involve internal perimeter pointing around door and window frames and in joints formed where fire rated partition sections meet