Aluminum Foil Shielding Tape 3M SCOTCH 1170, 16.5 m length x 15 mm width, silver

3M SCOTCH 1170 aluminum foil shielding tape is a silver, conductive roll designed for electromagnetic interference (EMI) and radio-frequency interference (RFI) shielding, grounding, splicing and sealing tasks. The tape is 16.5 m long and 15 mm wide, featuring a metal foil surface that provides reliable electrical contact and a conformable substrate that follows irregular shapes and seams in electronics, cable assemblies and HVAC systems.

Advantages

This shielding tape offers electrical conductivity across the foil for effective EMI/RFI attenuation and grounding. Its silver aluminum surface provides a corrosion-resistant conductive path while remaining flexible enough to wrap around cables, corners and joints. The tape is easy to cut to length and adheres quickly to a wide range of substrates, enabling fast repairs and permanent seals. The narrow 15 mm width is suitable for precision applications where a slim, controlled strip of conductive tape is required.

Suitable for

• EMI/RFI shielding of electronic enclosures and cable joints
• Grounding and conductive bridging in repairs
• Splicing and sealing of coaxial and fiber-optic cable terminations
• HVAC duct and component sealing where conductive continuity is needed
• Industrial sealing and shielding around sensors and connectors

Key specifications

• Material: aluminum foil with conductive backing
• Color: silver
• Length: 16.5 m
• Width: 15 mm
• Conductivity: electrically conductive foil surface for shielding and grounding
• Conformability: flexible to follow irregular surfaces and seams

How to use

Prepare surfaces by removing dust, oils and loose particles to ensure good adhesion. Measure and cut the required length with scissors or a blade. Apply the tape directly to the surface, pressing firmly along the foil to establish electrical contact and remove trapped air. For cable splices or seams, overlap ends by a few millimetres and press the edges to form a continuous conductive path. If long-term exposure to moisture or outdoor conditions is expected, ensure surrounding materials and seams are also sealed to maintain conductivity.

Usage recommendations

For optimal shielding performance, establish a solid electrical connection between the foil and chassis or grounding point. Use continuous overlap at joints and avoid stretching the foil during application. When used on delicate components, handle with care to prevent abrasion; when necessary, pair with an insulating layer to prevent unintended short circuits.