Everbuild Fire Mate Sealant C3 White Fire Mate Sealant is an intumescent acrylic sealant that swells when exposed to temperatures in excess of 125 degrees to prevent the passage of fire and smoke and has a fire rating of up to 4 hours in certain joint configurations Fire rated to BS 476 Part 20/EN1366-4 (2006) Acoustic rates to BS EN ISO 140/3. Tested for air permeability to EN13141-1 Brick, stone, concrete, timber Fire retardent properties Overpaintable when cured Interior use Water based product/water clean up Due to geographical locations we are unable to deliver to: Isle of Wight, Isle of Man and Ireland.