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The 50mm Aluminium Foil Tape Roll 45m is a self-adhesive foil tape designed to provide a durable, moisture-resistant and heat-reflective seal for insulation joints, ductwork, pipe lagging and vapour barriers. Made from a soft, malleable aluminium foil backing with a high-performance pressure-sensitive adhesive, it offers excellent adhesion to foil-faced insulation boards, metal surfaces and HVAC components while maintaining a continuous seal against air and moisture. Its reflective surface enhances thermal performance by helping reduce heat loss through seams, and the flexible foil conforms easily around irregular or curved surfaces for neat, secure sealing in both construction and maintenance tasks.