An intumescent acrylic sealant for internal applications, developed to maintain the integrity of fire walls or partitions. Dow Corning Firestop 400 does not emit halogenated by-products under fire conditions.
For internal perimeter pointing around door and window frames, and in joints formed where fire rated partition sections meet.
Tested to B.S.476 Part 22: 1987
Up to a 4 hour fire rating can be achieved
Resists mildew and mould growth
30-45 minutes tack free time
Good unprimed adhesion to most common construction substrates
|Class 2 Surface Spread of Flame Classification|
MFR Part No.