3M™ Polyester Film Electrical Tape 1318 is a yellow or black, 2.5-mil (0.064 mm) or 3.5-mil (0.089 mm) thick tape composed of a 1-mil (0.025 mm) or 2-mil (0.051 mm) polyester film backing coated on one side with a non-corrosive, acrylic pressure-sensitive adhesive.
FEATURES
- Commonly used in wrapping coils, capacitors, wire harnesses, transformers, shaded pole motors and fractional-horsepower motors.
- Adhesive requires no heat, moisture or other manner of preparation to affect application.
- Designed for continuous operation not exceeding 130°C (266°F) per UL listing.
1318-1
Physical Properties | Value Imperial (Metric) |
| Electrical Properties | Value Imperial (Metric) |
Color – Visual | Yellow, Black |
| Comparative Tracking Index (CTI)3 | I |
Adhesive | Acrylic |
| Dielectric Breakdown1 – Minimum | 5000 V |
Backing | Polyester Film |
| Electrolytic Corrosion Factor2 | 1.0 |
Mechanical Properties | Value Imperial (Metric) |
| Insulation Resistance1 – Minimum | 1×1012 Ω |
Backing Thickness – Nominal | 1 mil (0.025 mm) |
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Total Thickness1 | 2.5 +/- 0.5 mils (0.064 mm +/- 0.013) |
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Adhesion to Steel1 – Minimum | 25 oz/in (2.7 N/cm) |
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Breaking Strength1 – Minimum | 20 lb/in (35 N/cm) |
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Elongation1 – Minimum | 50% |
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