3M Copper Tape, UV-Resistant, Flame-Retardant - 2245 12MMx20M
After a foiled tape that offers high conductivity? Go for this smooth, 12mm-wide copper foil tape from 3M. It's coated on one side with acrylic adhesive that sticks reliably to common surfaces. Use it for domestic or industrial tasks, from wrapping wires to keeping slugs out of your garden. As it's highly conductive, the tape also makes an excellent choice for thermal protection and dissipation, as it spreads heat evenly over its surface to wipe out hot or cold spots. Thanks to its resistance to solvents, UV rays and humidity, it's a safe bet for both indoor and outdoor environments and delivers long-lasting service.
Product Highlights (Features)
✔ Pure Copper Shielding
- 99.9% electrodeposited copper foil with isotropic conductivity
- Dead-soft flexibility for complex surfaces (min. bending radius: 1mm)
✔ High-Performance Adhesive
- Conductive acrylic adhesive (carbon-filled, ≤0.05Ω/sq)
- Peel strength: 6 N/cm (tested per ASTM D3330)
✔ Robust Environmental Resistance
- Operating range: -40°C to +120°C
- Humidity resistant (96hrs @ 95% RH)
✔ Precision Format
- 12mm width (±0.1mm tolerance) × 20m length
Technical Parameters
| Category | Specification |
|---|---|
| Material | Copper foil + conductive acrylic adhesive |
| Thickness | 50μm (Cu) + 30μm (adhesive) |
| Surface Resistivity | ≤0.05 Ω/sq (per ASTM D4935) |
| Tensile Strength | ≥15 N/cm |
| Shielding Effectiveness | 70dB @ 1GHz (per MIL-STD-461F) |
| Dielectric Strength | 3kV/mm |
| Compliance | RoHS, REACH, IPC-4203 |
Typical Applications
1. Electronics & EMI Control:
- Repairing PCB traces (replaces soldering in SMT components)
- Shielding 5G/IoT modules from RF interference
- Grounding flexible circuits in wearables
2. Automotive:
- EMI protection for ADAS sensors (LiDAR/radar)
- Shielding EV battery management systems
3. Aerospace & Defense:
- Satellite waveguide shielding
- Conformal shielding for avionics
4. Industrial:
- Creating static-safe worksurfaces
- Shielding industrial IoT gateways
Competitive Edge
▲ Superior Conductivity vs. aluminum tapes (10× lower resistivity)
▲ No Curing Required – Instant bonding vs. conductive epoxies
▲ Laser-Cuttable for custom EMI gaskets
Data Source: 3M Technical Datasheet (EMI Shielding Solutions)
Note: For high-frequency applications (mmWave), pair with 3M™ 2255 (double-sided variant).
Need UL 94V-0 flame-rated options? Inquire about 3M™ 2246 series.
