Using Nanotechnology, this product fills in cracks & crevices other products can't, making a stronger, more solid bond that's permanently hardened to the surface area. Product Features:A permanent repairNanotechnology provides the tightest molecular bondWorks on aluminum, cast iron, brass and plasticsRepairs head gaskets, cracked engine blocks, intake gaskets, cylinder heads, freeze plugs and heater coresTreats 4, 6, or 8 cylinder engines with up to a 24 quart cooling systems capacity
