Copper Shielding Tape 3M Scotch 1181, copper foil tape 16.5 m x 9 mm

3M Scotch 1181 copper shielding tape is a thin copper foil tape supplied in a 16.5 m length and 9 mm width, created for applications that require conductive coverage and corrosion-resistant performance. The tape provides reliable electrical continuity for EMI/RFI shielding, grounding and low-resistance connections on electronic assemblies, cable splices and seams in metal enclosures. Its thin, conformable copper foil adheres to irregular surfaces and delivers stable conductivity in repair and OEM tasks where compact, flexible shielding is needed.

Advantages

The tape combines a continuous copper foil conductor with pressure-sensitive adhesive that ensures good electrical contact and long-term adhesion on clean metallic and non-metallic substrates. It offers corrosion resistance to help maintain conductivity over time, and its narrow 9 mm width allows precise application in tight spaces and along cables. The roll format (16.5 m) supports multiple repairs or shielding runs without frequent replacement.

Suitable for

• EMI/RFI shielding of cables, connectors and small enclosures
• Grounding and low-resistance electrical paths in electronic assemblies
• Repairing or reinforcing cable splices and braided shields
• Chassis seams and contacting gasket surfaces
• Hobbyist and professional electronics maintenance

Key specifications

• Material: copper foil with conductive pressure-sensitive adhesive
• Length: 16.5 metres
• Width: 9 millimetres
• Conformability: flexible, suitable for irregular surfaces and tight radii
• Surface finish: metallic copper, provides conductive path
• Typical applications: EMI/RFI shielding, grounding, electrical repair

How to use

Prepare surfaces by cleaning them of oil, dirt and oxidized residues to ensure maximum adhesion and electrical contact. Cut the required length from the roll, align the tape to the target area and apply pressure along the full contact area to secure the adhesive bond and reduce contact resistance. Overlap successive strips where continuous conductivity is required. For long-term installations, inspect joints periodically and replace if mechanical damage or corrosion is apparent.

Usage recommendations

Use the tape on dry, clean surfaces and avoid stretching the foil during application to prevent deformation. When applied over non-conductive substrates, ensure there is an electrical path to ground if grounding is required. For environments with aggressive chemicals or prolonged outdoor exposure, consider additional protective measures as needed to preserve conductivity and adhesion.