ASK A 3M EXPERT August, 2018 3M VHB Tape 4941 Product Description Finite Element Analysis (FEA) data is available for this product at: 3m.com/FEA 3M VHB Tape 4941 is a 0.045 inch (1.1 mm) thick gray double coated acrylic foam tape with paper liner. The multi-purpose acrylic adhesive on both sides bonds to a broad range of high and medium surface energy substrates including metals, glass and a wide variety of paints and plastics as well as plasticized vinyl. The conformable foam provides good contact between substrates even when they are slightly mismatched. 3M VHB Tape 4941 is part of the 4941 tape family. Each product in this family has multi-purpose acrylic adhesive and conformable foam but varies in thickness, color and liner type. Product Features Fast and easy-to-use permanent bonding method provides high strength and long-term durability Virtually invisible fastening keeps surfaces smooth Can replace mechanical fasteners (rivets, welds, screws) or liquid adhesives Gray, 0.045 in (1.1 mm), multi-purpose adhesive and conformable acrylic foam core o ers a good balance of strength and conformability Eliminate drilling, grinding, re nishing, screwing, welding and associated clean-up Creates a permanent seal against water, moisture and more Pressure sensitive adhesive bonds on contact to provide immediate handling strength Allows the use of thinner, lighter weight and dissimilar materials UL GREENGUARD and UL GREENGUARD Gold Certi ed, contributing to LEED Credit3M VHB Tape 4941 Technical Information Note The following technical information and data should be considered representative or typical only and should not be used for speci cation purposes. Typical Physical Properties Property Values Method Notes Color Gray Tape Thickness 1.1 mm 0.045 in Thickness Tolerance 10 % Adhesive Type Multi-Purpose Acrylic Foam Type Conformable Acrylic Foam Density 720 kg/m 45 lb/ft ASTM D3574 Foam with adhesive Liner DK Paper Liner Thickness 0.08 mm 0.003 in Liner Color White (printed) Typical Performance Characteristics Dwell Dwell/CTuimree Temp Temp Environmental Test Property Values MethodTime Units C F ConditiSounbstraBteackingNotes Condition 90 22 39 ASTM 72 hr 22C 72F 52%RHStainles2s mil 12 in/min (300 mm/min) Peel lb/in N/cm Aluminum Adhesion D3330 Steel Foil Normal 590 85 ASTM 72 hr Aluminum 1 in (6.45 cm), Jaw Speed 2 in/min (50.8 mm/min). Peak force Room Tensile kPa lb/in to separate is measured. Temperature D897 Room Temperature Table continued on next page