PROMASEAL®-AG Acrylic Intumescent Sealant is a water based sealant designed for use with copper pipes with combustible and non-combustible insulation as well as with selected plastic pipes to prevent the spread of smoke, fire and heat
It expands when heat is applied to it filling the penetration and taking up the space of any service or insulation that melts leaving an opening. It can be painted after 24 hours of installation