MFM WindowWrap PowerBond Window Wrap This product can be applied at temperatures as low as 25 deg. and carries a 15 year warranty. Power Bond White is the ideal choice to tape seams on insulated aluminum panels to create a lasting waterproof bond. It is also an excellent choice as a flashing material for roof and gutter repair, window flashing, and as a general-purpose waterproofing membrane. After installation, Power Bond may be exposed to sunlight for no more than 180 days without being covered. A release paper protects the asphalt and is removed as the tape is installed. Puncture and abrasion-resistant, lightweight, easy-to-handle and install. Reflective aluminum face. Shrink-wrapped and labeled for individual sale. Thickness 25 Mil. Size 6 In. x 100 Ft., Color White, Thickness 25 Mil., Pkg Qty 1, Package Type Shrink Wrap