Thickness: 1mm Color:Silver Width: 5cm, 10cm, 15cm, 20cm Length: 1m, 3m, 5m, 10m Material:Aluminum Foil+Butyl Specifications: MultifunctionalMulti-functional tape, easy to use. PersistenceThicker tape, more viscous and longer lasting. WaterproofRepair wall cracks and use the roof for waterproofing. InsulationThe smooth surface tape has a high reflectivity and is more thermally insulated. High Temperature ResistanceAluminum foil material, not afraid of scratching, anti-friction, high temperature resistance. Note: 1. Make sure the construction surface is dry. 2. There should be no impurities on the construction surface, which will affect the viscosity of the tape. 3. The tape is too narrow to affect the waterproof effect. 4. Can not be used on the back of the water, will fall off. 5. Roof waterproofing to find the leak point, responsible for no effect. Package Included: 1*Butyl aluminum foil tape