Everbuild Tecnic Fire Sealant 300 is a five hour rated, one part, emulsion acrylic based, intumescent sealant that gives a firm yet flexible seal to joints in a variety of fire rated structures. Tested in accordancewith BS EN 1366-4:2006 as detailed in Warrington Fire Research Report No.181967 (May 2009). The product, in suitably designed joints will resist the passage of fire for up to 5 hours. The selected fillers used in this formulation also make it suitable for use as an acoustic sealant.