GMFRP555 Aluminum Tape use of high-quality aluminum and excellent glue formula ,Our aluminum foil tape is beautiful and thicker than you think, and the eco-glue doesn't have a pungent smell. Our HVACTape has excellent waterproof sealing and chemical resistance, can reflect heat and light, heat conduction, electrical conductivity, good compliance, help to seal and protect sensitive parts and surfaces to be assembled. Able to withstand high temperature and humidity, our aluminum foil heavy duty consists of a soft, heat-conducting aluminum foil backing, which radiates heat on the tape surface, reduces hot spots and protects the substrate from high temperature.High Temperature Sealing and Patching,Ideal for HVAC,Air Ducts,Metal Repair, Foamboard,Insulation,Dryer Vent and More,2 inch X55 yards for your long-term use.