FLASH HARRY BITUMEN MASTIC 1LT

~Thick plasticised bitumen sealer.Bitumen Mastic is a trowel-applied, heavy-duty, thick, black, plasticised sealer and repair compound, which may be used to seal most roofing defects: roof screw bolts, nail holes, sheeting laps, valleys, gutters, down pipes, cracked tiles and many other roofing details. Bitumen Mastic has a built-in membrane so an additional membrane is generally