3M™ Glass Cloth Electrical Tape 27
3M™ Glass Cloth Electrical Tape 27 is a white, 7.25-mil (0.184 mm) thick tape with a 5-mil (0.127 mm) glass cloth backing coated on one side with a thermosetting rubber pressure-sensitive adhesive. The adhesive requires no heat, moisture, or other preparation for application, so it's ready to use straight off the roll. It's designed for 600-volt dry applications and rated for continuous operation up to 150°C (302°F) under UL listing and up to 130°C (266°F) under CSA listing.
Applications include: Coil outer wrapping, insulating motor lead connectors
- Thermosetting rubber adhesive
- No heat or moisture preparation required
- Rated to 150°C (302°F) UL, 130°C (266°F) CSA
- 600-volt dry rated
- UL Component Recognized
- CSA Certified
| Property | Specification |
| Adhesive Material | Rubber |
| Backing (Carrier) Material | Glass cloth |
| Total Thickness (Imperial) | 7.24 mil |
| Total Thickness (Metric) | 0.18 mm |
| Adhesion to Steel (N/cm) | 4.2 |
| Adhesion to Steel (oz/in) | 38.38 |
| Adhesion Test Method | ASTM D3330 |
| Tensile Strength (N/cm) | 210 |
| Tensile Strength (lb/in) | 119.91 |
| Elongation at Break | 5% |
| Product Color | White |
| Dielectric Strength | 2725 V |
| Insulation Resistance | 50 x 10⁶ Ω |
| Electrolytic Corrosion Factor | 0.90 |
| Certifications | UL510A, CSA Certified: C22.2 No. 66 |
| UL File | UL File E17385 , CSA File 093411 |
| Maximum Operating Temperature (Celsius) | 150 °C |
| Maximum Operating Temperature (Fahrenheit) | 302 °F |
| Minimum Operating Temperature (Celsius) | 0 °C |
| Minimum Operating Temperature (Fahrenheit) | 32 °F |
| Adhesive Thickness (mm) | 0.0570 |
