Aluminium Butyl waterproof tape (5 meter roll, typically 5cm wide) is a heavy duty, self adhesive sealing tape made with a reflective aluminium foil outer layer and a thick, high viscosity butyl rubber adhesive backing. Dual layer build combining a weather resistant aluminium top surface and a flexible, sticky butyl rubber compound underneath. Highly resistant to UV rays, heat and moisture, making it suitable for extreme outdoor temerature and monsoons. Adheres firmly to metal, concrete, PVC, Plastic, Wood, glass and tiles.