3M 425 Aluminum Foil Tape - 4 Inch Width x 4.6 Mil Thickness - High Temperature Resistant (300°F+) - Flame Retardant Adhesive - 85313 Roll - Perfect for HVAC Duct Sealing, Pipe Insulation & Electrical Repairs

3M 425 aluminum tape comes in a 4 in width, uses an acrylic adhesive and is packaged 2 rolls per case. Can be used in the following temperature range: -65 F to +300 F. Provides a tensile strength of 30 lb/in. When purchasing this product, consider the thickness. The variances in thickness often make an important difference in proper performance. This aluminum tape has a 4.6 mil total thickness. In addition to the other properties this product is flame retardant. This aluminum tape meets the following standards: AMST 23397, FAR 25.853 (a), L-T-80B, UL 723, UL 746C.