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3M Tape 70 HDT (7000133168) is a high-performance, Self-Fusing Silicone Rubber Tape. It’s designed for extreme electrical insulation and protection in high-temperature, high-voltage environments. Featuring a thick silicone rubber backing, 3M™ Scotch 70 HDT offers excellent arc and track resistance, making it ideal for heavy-duty industrial and utility applications. This non-adhesive, Self-Fusing Rubber Tape conforms easily to irregular shapes and fuses instantly without pressure. This ensures quick and secure application in even the most demanding conditions.
Part Number: 7000133168.
Engineered for professional-grade electrical insulation, 3M Tape 70 HDT combines superior dielectric strength with high thermal endurance. Its triangular-tapered profile and integrated blue guideline enable clean, precise half-lapping, while its UV and chemical resistance enhances performance in exposed or hazardous environments. Whether you’re insulating busbars, cables or critical joints up to 35 kV, Scotch Tape 70 HDT ensures long-lasting protection under extreme stress.
Excellent insulation and sealing for high voltage cables and terminations
Silicone rubber construction with high dielectric strength (600 V/mil)
Self-fusing design eliminates the need for pressure or adhesives
Triangular tapered edge profile for efficient half-lapping
Blue application guideline ensures even coverage
Rated for up to 35 kV with high elongation and tensile strength
Operates across extreme temperatures (0℃ to 180℃ / 0℉ to 356℉)
UV, chemical and arc-resistant for harsh outdoor use
Suitable for utility, industrial, wind, solar, marine and automotive sectors
RoHS 2011/65/EU compliant
Available in 25.4 mm (1 in) width, 9.1 m (30 ft) roll
Supplied in individual rolls for field-ready deployment
From mining operations to utility substations, 3M 70 HDT provides the mechanical strength and electrical protection you need to keep systems running safely. Its instant self-amalgamation, low-temperature flexibility and resistance to tracking and arcing make it a go-to solution for insulating live components under pressure. Whether you’re wrapping busbars, sealing transformer connections or insulating in confined, high-risk areas, this product delivers exceptional results every time.
When performance, protection and precision matter, trust 3M Tape 70 HDT and its industry-proven Scotch technology to safeguard your high-voltage infrastructure.
For Additional Information on 3M Scotch Self-Fusing Silicone Rubber Electrical Tape 70 HDT (7000133168), please consult the Technical Data Table or PDF File below.
*Technical Data subject to change without notice.
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| TYPICAL PROPERTIES | |
|---|---|
| Adhesive Type | Application/ Industry |
| Adhesive TypeNon-Adhesive | Application/ IndustrySolar, Maintenance and Repair Operations, Mining, Wind Power, Industrial Construction, Irrigation, Utility, Appliance and Fixture, Automotive and Marine, Commercial Construction |
| TYPICAL PROPERTIES - CONTINUED | |
| Min Operating Temp (℃) | Product Colour |
| Min Operating Temp (℃)0℃ | Product ColourGrey, Sky Blue |
| PHYSICAL PROPERTIES | |
| Thickness - Peak ASTM D2148 | Thickness - Edge ASTM D2148 |
| Thickness - Peak ASTM D2148.020 in | Thickness - Edge ASTM D2148.008 in |
| ELECTRICAL PROPERTIES | |
| Arc Resistance ASTM D495 | Fusion (Self Adhesion) ASTM D2148 |
| Arc Resistance ASTM D4951 min. (minimum) | Fusion (Self Adhesion) ASTM D21480.125 in |
| DIMENSIONS AND CLASSIFICATIONS | |
| Overall Length (ft) | Overall Length (m) |
| Overall Length (ft)30 | Overall Length (m)9.1 |
