Synthetic rubber-based preformed strip sealant laminated with an excellent tear and puncture resistance fixed foil backing. The modern alternative to lead with long term durability. Prevents wind driven rain penetration on exposed elevations. Adheres well to many substrates and is used for flashing between conservatories, canopies and atriums. Suitable for use in roof repairs and temporary remedial work such as sealing of leaking components. White foil laminated to a white butyl sealant.