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Roll of dark gray double-sided foam tape on a liner, continuous strip, 3/4 inch wide

3M

3M 4646 Double-Sided Foam Tape 3/4 in 5 yd 1/32 in Dark Gray

SKU CH-A8Y9-DQQY8

Double-sided polyethylene foam tape bonds ABS, acrylic, glass, metal and more indoors or out from −31 °F to 194 °F

  • ColorDark Gray
  • Strong hold across metals, plastics and glass
  • Performs from -31 °F to 194 °F
  • 5-yard continuous roll reduces waste
  • 3/4-inch width suits precise assembly tasks
  • 1/32-inch foam conforms to uneven surfaces

Double-Sided Foam Tape Series 4646

This 3M 4646 double-sided foam tape suits assembly, manufacturing and general repair tasks. The dark gray polyethylene foam bonds ABS, acrylic, glass, metal, nylon and polycarbonate surfaces. A liner is included for clean handling and precise placement. It serves indoor and outdoor projects across automotive, aviation, construction and electronics work.

Temperature Limits and Roll Format

Continuous roll length reaches 5 yards at 3/4 inch width with 1/32 inch thickness. The tape performs continuously from -31 degrees F to 194 degrees F. These bounds define the practical envelope for mounting, sealing and gasketing jobs exposed to seasonal extremes or engine-bay heat. No other temperature or dimensional data is supplied.

Replaces Liquid Adhesives and Mechanical Fasteners

The foam construction fills small gaps and distributes stress, reducing the need for screws, rivets or liquid glues that require cure time. The jump is worth it when a fast, vibration-resistant bond is needed on dissimilar materials without drilling or clamping. Buyers needing structural loads beyond foam tape capability or a wider roll format should look elsewhere.

Highlights

  • Strong hold across metals, plastics and glass
  • Performs from -31 °F to 194 °F
  • 5-yard continuous roll reduces waste
  • 3/4-inch width suits precise assembly tasks
  • 1/32-inch foam conforms to uneven surfaces

Specifications

Brand3M
ColorDark Gray

Questions about this item

Should I choose the 3/4 in width or a different size for my project?

This roll is supplied at 3/4 in wide and 5 yd long; select it when that width matches the bonding area you need to cover.

What does the 194 Degrees F maximum temperature mean once the tape is applied?

The bond remains reliable up to 194 Degrees F in service, so it suits engine-bay, electronics or outdoor assemblies that see sustained heat.

What surface standards does the 4646 series meet for adhesion?

The acrylic adhesive on the polyethylene foam is validated for ABS, acrylic, glass, metal, nylon and polycarbonate in indoor and outdoor use.

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