Intumescent fire door seal strip Fire stop compound  

Intumescent fire door seal strip Fire stop compound Features flame retardant, fire-expanding seal in case of fire or high temperature Non affected by water and humidity, Excellent graphite material, fireproof and waterproof Expansion factor of 3-5 times, Fire retardant and rapid expansion, effectively isolating smoke and dust assist the building components to have fireproof insulation, such as fire, smoke and heat insulation.