Shielding tape 3M Shielding Tape Scotch 1181 — copper foil, 16.5 m

3M Shielding Tape Scotch 1181 is a copper foil tape supplied in a 16.5 m roll, engineered for electrical shielding, EMI/RFI suppression and grounding. The tape features a conductive copper backing that ensures electrical continuity when applied to seams, joints or cable shields, and is suitable for electronic assembly, cable repair and fastening conductive contacts. Its thin, conformable construction allows it to follow irregular surfaces while maintaining contact for effective shielding and grounding.

Advantages

The copper foil backing provides low-resistance conductivity for reliable electrical continuity and improved grounding. The tape conforms to curved and irregular surfaces while maintaining adhesion and contact. It can be cut to size for precise application and creates a continuous conductive path along seams and joints. The product is compatible with common electronic assembly tasks and repairs where EMI/RFI control or grounding is required.

Suitable for

• Shielding seams and joints in electronic enclosures
• Repairing or restoring cable shields and conductive layers
• Creating or improving grounding paths in assemblies
• Reducing electromagnetic interference in modules and connectors

Key specifications

• Material: copper foil with conductive adhesive backing
• Length: 16.5 m
• Width: standard roll width suitable for electronics tasks (check product label for exact width)
• Construction: thin, conformable foil for flexible application
• Electrical: provides conductive path for EMI/RFI shielding and grounding

How to use

Ensure surfaces are clean, dry and free from oils or loose particles before application. Measure and cut the required length, then apply the tape firmly over the area to be shielded or grounded, smoothing to remove air pockets and ensure full contact of the copper backing with the substrate or mating surface. Overlap adjacent strips as needed to create continuous conductive coverage. For best results, make sure mechanical connections to chassis or ground points are secure and use additional conductive fasteners where appropriate.

Usage recommendations

Use the tape in environments compatible with copper and conductive adhesives; avoid extended exposure to corrosive chemicals or environments that accelerate oxidation. For long-term or outdoor applications, evaluate environmental protection or sealing to preserve conductivity. When creating grounding connections, verify continuity with appropriate test equipment after installation.