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3M

3M 3903 Duct Tape Black 50 yd 2 in

SKU CH-KM40-SD944

General-purpose duct tape with rubber adhesive on vinyl-coated cloth backing, 50 yd by 2 in, rated to 200 °F

  • ColorBlack
  • Strong 15.4 oz/in adhesion holds ducts securely
  • Rubber adhesive on vinyl-coated cloth resists 200 °F heat
  • 50-yard continuous roll covers large jobs without splicing
  • 2-inch width seals seams and joints quickly
  • Trusted 3M Series 3903 quality for professional repairs

What the 3903 duct tape is

3M 3903 is a black, vinyl-coated cloth duct tape with a rubber adhesive. It comes in a continuous roll 2 in wide and 50 yd long. The tape is 6.5 mil thick and rated for temperatures up to 200 degrees F. It suits general-purpose assembly, manufacturing, maintenance and repair tasks indoors.

Behaviour under sustained load

The rubber adhesive delivers 15.4 oz/in adhesion to steel, holding firm during extended indoor use. Vinyl-coated cloth backing resists moisture and abrasion while the tape remains flexible. At the rated 200 degrees F maximum the bond and backing stay stable, so long runs in ductwork or bundling do not degrade quickly.

What this replaces and when to switch

This roll replaces lighter cloth or paper tapes that tear or lose grip over time. The jump is worth it when you need a single 45.7 m roll that handles both sealing and bundling without frequent changeovers. It is not for buyers who need a tape rated above 200 degrees F or a width other than 2 in.

Highlights

  • Strong 15.4 oz/in adhesion holds ducts securely
  • Rubber adhesive on vinyl-coated cloth resists 200 °F heat
  • 50-yard continuous roll covers large jobs without splicing
  • 2-inch width seals seams and joints quickly
  • Trusted 3M Series 3903 quality for professional repairs

Specifications

Brand3M
ColorBlack

Questions about this item

How much heat can the 3M 3903 duct tape withstand when used continuously on ductwork?

The tape is rated for a maximum performance temperature of 200 Degrees F, making it suitable for standard HVAC duct temperatures.

What surface preparation or existing materials are needed for the 3M 3903 tape to adhere properly?

The rubber adhesive bonds to steel at 15.4 oz/in; ensure metal ducts are clean, dry, and free of oil or dust for best adhesion.

Will the 2-inch wide vinyl-coated cloth backing of the 3903 tape conform to the curved joints on my older flexible ducting?

The flexible vinyl-coated cloth backing conforms well to curved and irregular surfaces, including older flexible duct connections.

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