Our Metallised Butyl Tape (50mm X 5m, Black) is a heavy-duty self-adhesive sealing tape with a tough foil facing and a thick butyl rubber backing. It forms a durable, waterproof and airtight seal on roofs, gutters, flashing and pipework, bonding firmly to most surfaces and flexing to fill gaps and cracks. An excellent choice for weatherproofing and permanent repairs.Branded Label On Each RollIndividually Shrink WrappedBranded White Box With Retail Box LabelSingle Roll