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White double-sided foam tape roll on a core, 1/2 inch wide, 36 yards long

3M

3M VHB Tape 4950 45 mil White 1/2 in x 36 yds

SKU CH-077K-TY669

Double-sided acrylic foam tape bonds metal, glass and high-surface-energy plastics in structural applications such as vehicle panels, signs and equipment stiffeners

  • TypeTape
  • ColorWhite
  • Firm foam gives maximum VHB strength
  • 45 mil closed-cell acrylic foam carrier
  • Bonds metal glass and high-energy plastics
  • Replaces rivets welds and liquid adhesives
  • UL 746C listed for structural use

Industrial bonding tape

3M VHB Tape 4950 is a double-sided acrylic foam tape designed for structural bonding on metal, glass and high surface energy plastics. It replaces rivets, spot welds and liquid adhesives in interior and exterior assemblies. The firm foam carrier delivers the highest foam strength in the VHB family and carries UL 746C listing.

Firm foam and paper liner

The closed-cell acrylic foam carrier measures 45 mils thick with a 3 mil white printed paper release liner, giving a total thickness of 48 mils. The viscoelastic foam absorbs energy and relaxes stress, while the general-purpose acrylic adhesive resists solvents and moisture. The half-inch width on a 36 yard roll suits long, continuous bonds in truck bodies, signage and furniture.

Check substrate and surface prep

Verify that the mating surfaces are metal, glass or high surface energy plastic and that they are clean, dry and free of contaminants before application. The tape is not designed for low surface energy plastics or porous materials without additional treatment. Confirm the operating temperature range and load requirements match the general-purpose acrylic adhesive specification.

Highlights

  • Firm foam gives maximum VHB strength
  • 45 mil closed-cell acrylic foam carrier
  • Bonds metal glass and high-energy plastics
  • Replaces rivets welds and liquid adhesives
  • UL 746C listed for structural use

Specifications

TypeTape
Brand3M
ColorWhite

Questions about this item

What adhesive standard does 3M VHB 4950 meet?

It carries UL Listing 746C for general-purpose acrylic adhesive on closed-cell acrylic foam.

What surface width and liner type suit the 1/2 in roll?

The roll is 1/2 in wide with a printed white paper release liner designed for flat metal, glass or high-energy plastic.

How is the tape applied and what step is often missed?

Clean the substrate with isopropyl alcohol, press firmly across the full bond area, then allow the acrylic adhesive to build full strength over time.

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