3M Venture Tape UL181A-P and US181B-FX aluminum foil tape 1581A is a high temperature, high strength aluminum foil tape coated with a cold weather acrylic pressure sensitive adhesive.

3M™ Venture Tape Foil Tape, 60 yd L, 2-1/2 in W, 3.9 mil Thick, Natural Aluminum, 60 oz/in Peel Adhesive Strength, Aluminum Backing, Acrylic Adhesive, 12 mth Shelf Life, 29 in-lb Tensile Strength, 2 mil Backing Thickness, Paper Lining, 10% Elongation, -40 to 300 deg F

• 2 mil high strength aluminum foil-coated with a cold weather acrylic pressure sensitive adhesive
• Vapor seal on rigid duct board
• Conformable foil applies easily to both fibrous and sheet metal ducts on flat and irregular surfaces
• Excellent performance in demanding temperature and humidity conditions
• Excellent performance and durability over a wide range of environmental conditions
• Cold weather adhesive
• Hand tearable

• Catalog https://assets.unilogcorp.com/267/ITEM/DOC/3M_1599B2_Catalog.pdf
• Specification Sheet https://assets.unilogcorp.com/267/ITEM/DOC/3M_1581A3_Specification_Sheet.pdf