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3M™ Polyester Film Electrical Tape #56
3M™ Polyester Film Electrical Tape #56 is a yellow, 2.5-mil thick electrical tape designed for insulating applications requiring high dielectric strength in thin, space-restricted configurations. Combining a 1-mil yellow polyester film backing with a pressure-sensitive thermosetting rubber adhesive, Tape #56 offers exceptional physical and electrical performance without requiring heat or moisture during application.
Key Features & Benefits
- High Dielectric Strength: Delivers 4,500V dielectric breakdown protection for dependable electrical insulation.
- Thermosetting Rubber Adhesive: Pressure-sensitive adhesive bonds aggressively and resists flagging, solvents, and chemical degradation.
- Thin & Conformable: 1-mil polyester backing provides high flexibility and conformability while retaining excellent resistance to punctures, abrasion, and cut-through.
- Thermal Performance: Rated for continuous operation up to 130°C (266°F) per UL and CSA standards.
- Regulatory Compliant: UL Component Recognized (UL510A, File E17385), CSA Certified, and RoHS compliant.
| Backing Material |
Polyester Film (1 mil / 0.025 mm) |
| Adhesive Type |
Thermosetting Rubber |
| Total Thickness |
2.5 mils (0.064 mm) |
| Color |
Yellow |
| Voltage Rating |
600V |
| Temperature Rating |
Class 130°C (266°F) |
| Dielectric Breakdown |
4,500 Volts |
| Tensile Breaking Strength |
20 lbs/in (35 N/cm) |
| Adhesion to Steel |
35 oz/in (3.8 N/cm) |
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Applications
Recommended Applications
- Coil cover insulation and outer wrapping
- Transformer layer insulation
- Shaded-pole and fractional-horsepower motor insulation
- Capacitor wrapping and wire harness bundling
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