Compare 4 prices for Dowsil Corning Firestop 400 Intumescent Acrylic Sealant White 380ml — from £5.40 to £11.95 across 4 UK sellers including I T S, BP Tools UK, My Tool Shed and more. Save up to £6.55 (55%).
Firestop 400 380ml is an intumescent acrylic sealant for internal applications, developed to maintain the integrity of fire walls or partitions and 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.
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