Description: Features:1. Seal Tape, Roof Repair Tape Rubber Seal Tape Covered with Aluminium Foil2. This sealant tape is widely used in roofing of the building, surface crack, RV repair, window, boat Sealing, glass and roof patching3. Very easy to use, just peel off the released film and then apply this butyl sealant tape to anywhere needed.4. It has weather resistance, aging resistance and water resistance, and has a sealing, vibration damping and protection effect on the surface.5. It can maintain flexibility, adhesion, can withstand a certain degree of displacement, and deformation has good followability.6. Waterproof, sealed and chemically resistant, UV resistant (sunshine).7.Superior Heat Resistance.8.Instant Watertight Seal.9.Lasts up to 15 years.10.Stronger Membrane.11.Ideal for new building or emergency repairs. Specification:Material: Aluminum Foil Backing/ Black Butyl RubberSelf adhesive sealing strip that bonds instantly to provide a permanent water-tight seal in all climates Preparations:Surfaces must be sound, clean, dust free and fry.Use bituminous Flashband Primer to improve adhesion on porous rough, dusty surfaces in cold or damp weather.Porous surfaces-dampen lightly with water before applying.Non-porous surfaces-should be dry or only very slightly damp.Apply Flashband Primer with a water dampened brush.Fill cracks wider than 3mm, deep hollows or depressions. Application:Cut to the required length.Remove the backing. Press Flashband into place using fingertip pressure. Avoid excessive pressure.When laying adjacent rolls the Flashband must overlap by at least 25mm.Use a seam roller or rounded piece of wood to smooth the Flashband and ensure good contact is made. here is a video on how to Apply: https://www.youtube.com/watch?v=KqHY7xJ4To0