Size: 2" X 50 yd. RollAluminum Foil BackingCoated With A Strong, Durable AdhesiveFor Sealing Heating And Cooling Air DuctsPrevents Heating And Cooling LossBlocks Odors And MoistureFlame RetardantUse For Metal Repair Jobs Or Decorating Jobs Around The HouseSilicone Coated Release Liner For Wrinkle Free Unwind And Easy ApplicationWeatherstrippingFor Interior And Exterior UseThickness: 3 MilTemperature Range: 0 To 225 Degrees Fahrenheit