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Clear conductive electrical tape on a continuous roll, transparent polymeric film with acrylic adhesive

3M

3M 40PR Conductive Electrical Tape Clear 1in 72yd 2.2mil 20V PK9

SKU CH-7DQM-CR5AH

Clear conductive electrical tape on a 72-yard roll, 2.2 mil thick, rated for 20 V and up to 266 °F, supplied in a pack of nine

  • ColorClear
  • Conductive shielding for low-voltage circuits up to 20 V
  • Heat-resistant acrylic adhesive withstands 266 °F continuous exposure
  • Ultra-thin 2.2 mil polymeric film conforms to tight spaces
  • Clear anti-static backing allows visual inspection of wrapped components
  • Nine-roll pack supplies 72 yd each for extended production runs

Conductive electrical tape for low-voltage shielding

This 3M 40PR tape uses a clear polymeric film backing with a single-sided acrylic adhesive. It is supplied as a continuous roll measuring one inch wide and seventy-two yards long. The product is rated for twenty volts and carries a maximum performance temperature of two hundred and sixty-six degrees Fahrenheit. Each pack contains nine rolls.

Check voltage rating and temperature limits before

Verify that the twenty-volt rating matches the circuit you intend to shield or wrap. Confirm the maximum operating temperature of two hundred and sixty-six degrees Fahrenheit is not exceeded in your application. The tape has no rated minimum performance temperature, so consider low-temperature behaviour separately. Ensure the clear, anti-static finish suits the visual and electrical requirements of the job.

Stable adhesion and conductivity under continuous

The acrylic adhesive maintains bond strength at the full two hundred and sixty-six degree Fahrenheit upper limit during sustained operation. The 2.2 mil film thickness provides consistent conductivity without the degradation seen in short-term burst tests. Shielding effectiveness is listed as not applicable, so the tape serves as a conductive path rather than an EMI barrier. Performance remains uniform across the full seventy-two yard length of each roll.

Highlights

  • Conductive shielding for low-voltage circuits up to 20 V
  • Heat-resistant acrylic adhesive withstands 266 °F continuous exposure
  • Ultra-thin 2.2 mil polymeric film conforms to tight spaces
  • Clear anti-static backing allows visual inspection of wrapped components
  • Nine-roll pack supplies 72 yd each for extended production runs

Specifications

Brand3M
ColorClear

Questions about this item

Does the package include nine rolls of 3M 40PR conductive tape or must I buy rolls separately?

The pack contains nine rolls of 1-inch by 72-yard clear 3M 40PR conductive tape; no additional rolls are required.

How do I choose between the 20 V rating and the 266 °F temperature limit for my application?

The tape is rated for up to 20 volts and withstands temperatures up to 266 °F; select based on the voltage and heat your circuit will see.

What does the 2.2 mil thickness mean when the tape is applied inside a live enclosure?

At 2.2 mil the single-sided acrylic-backed film adds minimal bulk while providing conductive shielding up to 20 V and 266 °F.

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