3M 1170 Tape is an aluminum foil tape with excellent electrical conductivity, widely used for grounding and EMI shielding in electronic equipment.
3M 1170 Tape consists of a 1‑ounce dead‑soft aluminum foil backing and a conductive pressure‑sensitive acrylic adhesive. It is supplied on a removable liner and can be ordered in standard or custom widths (¼" to 23") and lengths (standard 18 yds, longer on request). The tape is commonly used for grounding and EMI shielding in equipment, components, and shielded rooms.
Typical performance includes a far‑field shielding effectiveness of 60‑75 dB from 30 MHz to 1 GHz, a backing thickness of 2.0 mil (0.05 mm), total thickness of 3.2 mil (0.081 mm), breaking strength of 20 Ib./in, adhesion to steel of 35 oz/in, and an electrical resistance through the adhesive of 0.010 Ω. The product meets UL‑510 flame‑retardancy requirements.
| Backing thickness | 2.0 mil (0.05 mm) |
|---|---|
| Total thickness (backing plus adhesive) | 3.2 mil (0.081 mm) |
| Breaking strength | 20 Ib./in (35 N/10mm) |
| Adhesion to steel | 35 oz/in (3.8 N/10mm) |
| Electrical resistance through adhesive | 0.010 Ω |
| Flame retardancy | Pass (UL‑510) |
Typical far‑field shielding effectiveness is in the range of 60 dB to 75 dB (30 MHz to 1 GHz).
The foil backing is 2.0 mil (0.05 mm) thick and the total thickness with adhesive is 3.2 mil (0.081 mm).
The electrical resistance through the adhesive is 0.010 Ω.
Yes, it passes UL‑510 flame‑retardancy testing.