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Silver aluminium foil tape roll, two inches wide, eighteen yards long

3M

3M 1170 Conductive Electrical Tape Silver 18 yd

SKU CH-B2JP-ADXFS

Conductive aluminum-foil tape with acrylic adhesive, rated 600 V and 69 dB shielding from −40 °F to 266 °F, supplied as an 18-yard roll

  • ColorSilver
  • Shields signals effectively with 69 dB shielding effectiveness
  • Operates reliably from -40 °F to 266 °F
  • Handles up to 600 V for electrical safety
  • Aluminum foil backing provides conductive shielding
  • 18 yd roll supplies ample length for projects

Product Identity

3M 1170 is a conductive electrical tape built with aluminium foil backing and acrylic adhesive. It suits engineers and technicians who need reliable EMI shielding and grounding in electrical assemblies. The continuous roll format supports consistent application across production or maintenance tasks. Silver colour aids visual identification in complex wiring looms.

Critical Specification

Shielding effectiveness reaches 69 dB, the key figure that determines whether this tape meets your attenuation requirement. Voltage rating is 600 V, setting the upper limit for safe electrical contact. Operating range spans -40 °F to 266 °F, so the tape remains functional in extreme ambient conditions. Liner included protects the adhesive until the moment of use.

Sustained Load Behaviour

Acrylic adhesive maintains bond integrity across the full -40 °F to 266 °F temperature window during continuous operation. Aluminium foil backing resists degradation and preserves conductivity over long duty cycles. The 3 mil thickness provides mechanical stability without compromising conformability on irregular surfaces. Performance stays consistent under prolonged thermal and electrical stress.

Highlights

  • Shields signals effectively with 69 dB shielding effectiveness
  • Operates reliably from -40 °F to 266 °F
  • Handles up to 600 V for electrical safety
  • Aluminum foil backing provides conductive shielding
  • 18 yd roll supplies ample length for projects

Specifications

Brand3M
ColorSilver

Questions about this item

How much shielding does the 69 dB figure actually give me when I wrap a cable?

The 69 dB shielding effectiveness means the tape attenuates electromagnetic interference by that level across its rated frequency range when applied with proper overlap.

What does the 600 V rating limit in real use?

The 600 V rating is the maximum continuous voltage the tape insulation can withstand; do not apply it on conductors operating above that voltage.

Will the 2-inch wide roll fit inside a standard electrical box?

The tape is supplied on a continuous roll 2 inches wide; it is applied by hand and does not require a mounting fixture or box.

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