Premium 20 mil silicone rubber electrical tape with triangular tapered edge, rated to 356°F (180°C), featuring self-fusing adhesive and 35 kV voltage rating for industrial electrical applications.
Scotch® Heavy Duty Rubber Electrical Tape 70 HDT is a premium grade, 20 mil thick electrical tape engineered with silicone rubber backing for superior performance in demanding industrial applications. This professional-grade tape features a triangular, tapered edge design that facilitates easy re-entry connections and half-lapping applications with its integrated blue guideline. The tape withstands extreme temperatures up to 356°F (180°C), making it ideal for high-temperature electrical environments including appliances, automotive systems, marine applications, and utility installations.
The Scotch® Tape 70HDT incorporates a self-fusing, inorganic silicone adhesive that provides optimized adherence and excellent conformability to irregular surfaces. This highly specialized formulation delivers outstanding weathering characteristics, exceptional resistance to arcs and flashes, and superior chemical resistance. The tape is specifically designed for use as both a base layer for electrical connections and as an overwrap for protecting high-voltage cables from tracking and electrical degradation. With its 450% elongation at break and 600 V/mil dielectric strength, this tape ensures reliable performance in critical electrical applications.
This product is RoHS 2011/65/EU compliant and meets rigorous industry standards including ASTM D-495-71, AA-59163 Class-I Type I, and ASTM D-1000-76. Each roll measures 1 inch wide by 30 feet long with a voltage rating of 35 kV, providing extensive coverage for industrial electrical maintenance and insulation projects. The tape maintains its properties with a 5-year shelf life and is supplied as 1 roll per carton with 24 rolls per case for convenient bulk purchasing.
Key Features
- Withstands extreme temperatures up to 356°F (180°C) for high-temperature applications
- Premium 20 mil thick silicone rubber backing with self-fusing, inorganic adhesive
- Triangular tapered edge design with blue guideline for easy half-lapping applications
- Exceptional dielectric strength of 600 V/mil with 35 kV voltage rating for high-voltage cable protection
- Outstanding weathering and chemical resistance with excellent arc and flash resistance
- 450% elongation at break for superior flexibility and conformability on irregular surfaces
- RoHS 2011/65/EU compliant meeting ASTM D-495-71, AA-59163, and ASTM D-1000-76 standards
- 5-year shelf life with professional-grade quality for industrial electrical maintenance
Technical Specifications
| Specification |
Value |
| Brand | Scotch® |
| Product Grade | Professional |
| Backing Material | Silicone Rubber |
| Backing Thickness | 0.3 mm (20 mil) |
| Total Tape Thickness | 0.51 mm (20 mil) |
| Width | 1 inch (25.4 mm) |
| Length | 30 feet (9.1 m) |
| Adhesive Type | Self-Fusing Inorganic Silicone |
| Product Color | Sky Blue/Gray |
| Maximum Operating Temperature | 356°F (180°C) |
| Minimum Operating Temperature | 0°C (32°F) |
| Dielectric Strength | 600 V/mil |
| Voltage Rating | 35 kV |
| Elongation at Break | 450% |
| Tensile Strength | 82.7 kPa |
| Shelf Life | 5 Years |
| Rolls per Carton | 1 |
| Rolls per Case | 24 |
| Edge Design | Triangular Tapered Edge with Blue Guideline |
| Key Features | Chemical-resistant, Self-sticking, UV-resistant |
| Standards Met | ASTM D-495-71, AA-59163 Class-I Type I, ASTM D-1000-76, RoHS 2011/65/EU |
| Applications | Electrical Maintenance, Insulation, Appliance and Fixture, Automotive and Marine, Commercial Construction, Industrial Construction, Irrigation, Mining, Solar, Utility, Wind Power |
| 3M ID | 7000133168 |
| UPC | 00051128572627 |
| Product Type | Heavy Duty Rubber Electrical Tape |
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