Everbuild Fireseal 300 is a one-part, acrylic-based, intumescent sealant that gives a firm yet flexible seal. T
The product will resist fire passages for up to 5 hours. The selected fillers used in this formulation also make it suitable for use as an acoustic sealant. Alternative fire product from Everbuild is the Fire Seal 400 – slightly less fire-resistant time but silicone-based over the acrylic 300, making it slightly easier to apply.