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Five clear foam tape discs on a liner

3M

3M 4905 Foam Tape Transparent Disc PK5

SKU CH-21AT-7N2PG

Clear foam tape discs bond ABS, acrylic, glass, metal and polycarbonate indoors or outdoors from −31 °F to 194 °F

  • Product colorClear
  • Bonds ABS, acrylic, glass, metal and more
  • Withstands -31 °F to 194 °F extremes
  • Pre-cut discs apply fast with no trimming
  • Liner included protects adhesive until use
  • 3M brand trusted across assembly industries

Clear Foam Discs for Assembly

3M 4905 transparent foam tape arrives as pre-cut discs in a pack of five. The clear adhesive bonds ABS, acrylic, glass, metal, nylon and polycarbonate surfaces. It serves assembly, manufacturing, automotive, aviation, construction, electronics and general maintenance tasks. Indoor and outdoor use is supported.

Temperature Range and Liner

The tape performs from -31 Degrees F to 194 Degrees F without loss of bond. A protective liner is included on each disc for clean handling. No width or length dimensions apply to the pre-cut format. Power draw and noise are not relevant for this adhesive product.

Pre-Cut Disc Format

Each pack contains five individual discs rather than a continuous roll. Buyers who need a roll or a different quantity cannot use this SKU. The fixed disc count and shape are the deciding specification for the application.

How it compares

Measured against everything we stock in Office, Masking & Packing Tape, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 93% of the 3,148 comparable items (median $29.99).

Specifications

Product
Brand name3M
Product colorClear

Questions about this item

How do I apply these pre-cut discs and what step do people skip?

Peel the liner from each disc, press firmly onto clean ABS, acrylic, glass, metal, nylon or polycarbonate, then hold pressure for several seconds — skipping the surface-cleaning step is the most common error.

Will the adhesive degrade and need replacement over time?

The acrylic foam bond is designed for permanent indoor or outdoor assembly across -31 °F to 194 °F; it does not require scheduled replacement unless the joint is mechanically stressed beyond design limits.

What temperature limit will I hit first during continuous outdoor exposure?

The upper performance limit is 194 °F; sustained surface temperatures above that will degrade adhesion before the lower -31 °F limit becomes relevant.

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