3M™ Polyester Film Electrical Tape 1318-1W is an electrical insulating tape with a 1.0-mil white polyester backing and an aggressive acrylic adhesive. Combining high dielectric strength (5,500V), smooth unwind, and superior flagging resistance, it is ideal for outer wrapping on visible white electronic coils and transformers.
Key Performance Highlights
- Pure white polyester backing provides clean aesthetic finish and high contrast for printing
- Non-corrosive acrylic adhesive delivers smooth unwind and flagging resistance
- UL Recognized Class 130°C component for switch-mode power supplies
- Resists solvents, varnishes, and cleaning chemicals used in PCB assembly
Recommended Industrial Applications
Outer wrap on white coil assemblies, color-coded insulation, transformer coil margins
Authoritative Technical Specifications
| Backing Material | 1.0 mil (0.025 mm) white polyester (PET) film |
|---|---|
| Adhesive System | Solvent-resistant acrylic pressure-sensitive adhesive |
| Total Thickness | 0.063 mm (2.5 mil) |
| Operating Temperature | Up to 130°C (266°F) · UL Class 130°C |
| Visual Color / Appearance | White (1-mil Polyester) |
| Dielectric / Flame Rating | UL Recognized, File E17385 · 5,500 Volts dielectric breakdown |
| Precision Converting | Precision Rotary Slitting, Die-Cutting, Custom Widths from 2mm to Log Width |
