3M Aluminum Foil Tape 4380 -  3"-Inch X 55yd / Silver / 3.25mil / HVAC

• Conformable tape resists flame, moisture, weather, UV degradation and many chemicals
• Thermally conductive tape reflects and dissipates radiant heat to protect heat sensitive components or surfaces
• Malleable foil conforms well to irregular shapes and surfaces
• Low moisture vapor transmission rate offers excellent sealing and patching performance