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3M
VHB™ Tape 4646

25 Mil High Temperature Acrylic Foam Tape

3M™ VHB™ Tape 4646 is a 25 mil, double sided dark gray, acrylic foam tape for bonding metals and other high surface energy materials. It has an excellent temperature resistance and can be used to bond metal parts prior to paint processing.

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Product Properties Related Information Custom Quote

Converting Services

At Budnick, we specialize in custom converting these materials into labor saving, user-friendly parts.

Backing/Carrier Acrylic Foam
Adhesive Acrylic
Thickness 25 Mils
Tensile 100.00 lbs/in
Elongation
Adhesion (liner) 240 oz/in
Adhesion (unwind) 240 oz/in
Min. Application Temp 50° F
Min. Service Temp -40° F
Max Short-Term Temp 450° F
Max Long-Term Temp 300° F

Product Features

  • Can replace liquid adhesives, spot welds, rivets and many mechanical fasteners
  • General purpose acrylic adhesive bonds to most higher surface energy substrates including metal, glass, and high surface energy plastics
  • Firm acrylic foam provides the highest level of foam strength in the 3M™ VHB™ family
  • Viscoelastic acrylic gives foam energy absorbing and stress relaxing properties
  • Acrylic chemistry provides outstanding durability and excellent solvent and moisture resistance with some moderate resistance to chemicals
  • UL Recognition 746C

Adhesive Tape Applications

  • Pre-powder coat paint applications: hat channels & stiffeners
  • Bonding metals and other high surface energy materials

Adhesive Tape Colors

  • Gray

Data provided by Budnick Converting, Inc.

The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.

It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.

Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.

Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.

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For decades Budnick has provided customized solutions for specialty adhesive applications designed specifically for manufacturers. Whether you're looking to speed up production, improve product performance, or protect your products during transport, Budnick has a solution for your needs!