3M™ Glass Cloth Electrical Tape 79
3M™ Glass Cloth Electrical Tape 79 is a white, 7-mil (0.178 mm) tape with a 5-mil (0.127 mm) glass cloth backing coated on one side with a non-corrosive acrylic pressure-sensitive adhesive. No heat, moisture, or other preparation is required for application. The tape is rated for continuous operation up to 155°C (311°F) per UL listing and is commonly specified for coil cover, anchor, banding, core layer, and crossover insulation applications.
Applications include: Coil cover, anchor, banding, core layer, and crossover insulation
- Acrylic adhesive
- Non-corrosive
- No heat or moisture preparation required
- Rated to 155°C (311°F) UL
- UL Component Recognized
| Property | Specification |
| Adhesive Material | Acrylic PSA |
| Backing (Carrier) Material | Glass cloth |
| Total Thickness (Imperial) | 7 mil |
| Total Thickness (Metric) | 0.18 mm |
| Backing (Carrier) Thickness (Imperial) | 5 mil |
| Backing (Carrier) Thickness (Metric) | 0.13 mm |
| Adhesion to Steel (N/cm) | 3.3 |
| Adhesion to Steel (oz/in) | 30.16 |
| Adhesion Test Method | ASTM D3330 |
| Tensile Strength (N/cm) | 140 |
| Tensile Strength (lb/in) | 79.94 |
| Product Color | White |
| Dielectric Strength | 2000 V |
| Insulation Resistance | 50 x 10⁶ Ω |
| Electrolytic Corrosion Factor | 0.90 |
| Certifications | UL UL510A |
| UL File | UL File E17385 |
| Maximum Operating Temperature (Celsius) | 155 °C |
| Maximum Operating Temperature (Fahrenheit) | 311 °F |
| Adhesive Thickness (mm) | 0.0510 |
