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Gray VHB 4646 tape roll, 25.0 mil, 1 inch by 5 yards

3M

3M VHB 4646 Tape Gray 25.0 Mil 1in x 5yd

SKU CH-3FY4-6A783

Gray VHB 4646 structural tape bonds permanently with 25.0 mil thickness across a 1in x 5yd roll

  • ColorGray
  • High-strength bonding from 25.0 mil VHB construction
  • Gray color blends with neutral surfaces
  • 1 inch width suits precise applications
  • 5 yard roll provides ample length
  • Model 4646 identifies the specific adhesive formulation

VHB 4646 bonding tape

3M VHB 4646 is a gray acrylic foam tape supplied in a 25.0 mil thickness on a 1 inch by 5 yard roll. It creates a permanent structural bond between metals, plastics and painted surfaces without mechanical fasteners. The closed-cell foam core distributes stress evenly across the joint.

Suited for industrial assembly and signage

Engineers specifying high-strength bonds for panels, stiffeners or exterior signs will find the VHB 4646 formulation matches those requirements. Buyers who need a removable adhesive, a clear tape or a product rated for continuous immersion should look at other adhesive families.

25.0 mil foam thickness

The 25.0 mil acrylic foam layer determines the gap-filling ability and the shear strength of the bond line. Select this roll when the design calls for that specific foam thickness; choose a different VHB variant when the joint geometry demands a thinner or thicker carrier.

Highlights

  • High-strength bonding from 25.0 mil VHB construction
  • Gray color blends with neutral surfaces
  • 1 inch width suits precise applications
  • 5 yard roll provides ample length
  • Model 4646 identifies the specific adhesive formulation

Specifications

Brand3M
ColorGray

Questions about this item

What does the 25.0 mil thickness mean for gap filling?

The 25.0 mil acrylic foam conforms to uneven surfaces and maintains a uniform bond line when compressed.

How does the VHB 4646 construction affect holding power?

The closed-cell acrylic foam core distributes stress across the entire bonded area for high shear strength.

What surface preparation does the 1 inch wide roll require?

Clean both substrates with isopropyl alcohol, apply firm pressure, and allow dwell time for full adhesion.

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