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Black vinyl-coated cloth duct tape roll 4 in x 50 yd 6.5 mil

3M

3M 3903 Duct Tape Black 4 in x 50 yd 6.5 mil

SKU CH-S4XK-K3K38

General-purpose duct tape with vinyl-coated cloth backing and rubber adhesive holds for indoor assembly, maintenance and repair from 40 to 200 °F

  • Withstands heat up to 200 °F for demanding jobs
  • Remains flexible down to 40 °F in cold environments
  • Strong 15.4 oz/in adhesion bonds securely to steel
  • 5 mil vinyl-coated cloth resists tears and abrasion
  • 50-yard continuous roll covers large projects without splicing

3903 Series Duct Tape

This 3M 3903 duct tape uses a vinyl-coated cloth backing with a rubber adhesive for general-purpose assembly, maintenance and repair tasks. The continuous roll measures 4 inches wide by 50 yards long at 6.5 mil thickness and is rated for indoor use only. It suits technicians needing reliable holding power across common industrial and warehouse jobs.

Thermal Range and Adhesion

The tape performs between 40 and 200 degrees Fahrenheit, maintaining bond strength through typical indoor temperature swings. Adhesion to steel is rated at 15.4 ounces per inch, giving consistent grab on metal surfaces during normal use. No power draw or noise is generated because the product is a passive adhesive component.

Build Integration

The roll fits standard dispensers and requires no special tooling, freeing up bench space compared to bulkier fastening systems. Its indoor-only rating means it should not be specified for exterior or UV-exposed assemblies. Buyers needing outdoor durability or specialised substrate compatibility should select a different tape formulation.

Highlights

  • Withstands heat up to 200 °F for demanding jobs
  • Remains flexible down to 40 °F in cold environments
  • Strong 15.4 oz/in adhesion bonds securely to steel
  • 5 mil vinyl-coated cloth resists tears and abrasion
  • 50-yard continuous roll covers large projects without splicing

Specifications

Brand3M PREFERRED CONVERTER

Questions about this item

How do I apply the 4 in wide 3903 tape so the rubber adhesive bonds properly?

Clean the surface, then press the vinyl-coated cloth backing firmly along the full 4 in width to activate the 15.4 oz/in adhesion to steel.

Will the 6.5 mil vinyl-coated cloth backing or rubber adhesive degrade first over time?

The rubber adhesive typically loses tack before the 6.5 mil vinyl-coated cloth backing tears, especially near the 200 °F upper limit.

At what temperature does the 3903 tape start to lose holding power during continuous use?

Performance drops as the rubber adhesive approaches its 200 °F maximum continuous temperature rating.

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