The flashing solution for pipes through metal roofs. Grey Thermoplastic Elastomer. Stretches to any shape, seals and stays. The unique and patented internal aluminium strip allows the forming of almost any shape to seal and weatherproof. Use with butyl mastic sealant and self-drilling screws to seal pipes, ducts, skylights, chimneys, bullnose and curved roofing profiles. Ideal for flashingsquare ducts and chimneys, Width: 180mm. Length: 23m.