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Copper foil tape roll on white liner, 3M 1181 branding

3M

3M 1181 Conductive Electrical Tape Copper 6 yd

SKU CH-9RRF-QYFRB

Copper foil tape with acrylic adhesive conducts and shields to 66 dB from -40 to 266 °F at 600 V

  • ColorCopper
  • Conducts electricity reliably with 600 V rating
  • Shields signals effectively at 66 dB effectiveness
  • Operates in extreme cold down to -40 degrees F
  • Withstands high heat up to 266 degrees F
  • Thin 2.6 mil foil conforms to irregular surfaces

3M 1181 Copper Foil Tape

3M 1181 is a copper foil tape with acrylic adhesive on a 6-yard roll. The backing measures 2.6 mil thick and carries a 600 V rating. Shielding effectiveness reaches 66 dB for EMI and RFI suppression. A release liner is included for easy handling and storage.

Electrical shielding and grounding tasks

This tape suits technicians who need reliable EMI shielding, cable wrapping or static drainage in a single-sided format. It operates from -40 °F to 266 °F, covering most industrial and automotive environments. Buyers who require double-sided conductivity or a different foil alloy should look at alternative products. The roll length is fixed at six yards.

Capacity and headroom

The 600 V rating provides headroom for low-voltage control circuits and signal-level shielding. At 66 dB the tape attenuates common interference bands encountered in harnesses and enclosures. The 2.6 mil foil resists tearing during application but is not designed for mechanical strain relief. Continuous rolls allow custom lengths without splices.

Highlights

  • Conducts electricity reliably with 600 V rating
  • Shields signals effectively at 66 dB effectiveness
  • Operates in extreme cold down to -40 degrees F
  • Withstands high heat up to 266 degrees F
  • Thin 2.6 mil foil conforms to irregular surfaces

Specifications

Brand3M
ColorCopper

Questions about this item

What surface temperature range can the 3M 1181 copper foil tape withstand once applied?

The tape performs from minus 40 degrees Fahrenheit up to 266 degrees Fahrenheit, so it remains functional across extreme cold and heat cycles.

Will the acrylic adhesive on this 1181 tape bond reliably to aged metal ductwork already in place?

The single-sided acrylic adhesive is designed for general-purpose foil applications and adheres to clean metal surfaces, including older ductwork, when prepared properly.

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