3M Scotch Self-Fusing Silicone Rubber Electrical Tape 70 HDT - 7000133168

Product overview

3M 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, 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.

3M Scotch Self-Fusing Silicone Rubber Electrical Tape 70 HDT

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.

Key Features & Benefits

  • 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

3M Scotch 70 HDT – Arc & Thermal Insulation for Demanding Applications

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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Technical Data

TYPICAL PROPERTIES

Adhesive Type Application/ Industry Applications Backing (Carrier) Material Backing (Carrier) Thickness (Metric) Brands Dielectric Strength Elongation at Break Features Max Operating Temp (℃) Max Operating Temp (℉)
Non-Adhesive Solar, Maintenance and Repair Operations, Mining, Wind Power, Industrial Construction, Irrigation, Utility, Appliance and Fixture, Automotive and Marine, Commercial Construction Electrical Maintenance, Insulation Silicone 0.3 mm Scotch® 600 V/mil 450.0% UV-resistant, Self-sticking, Chemical-resistant 180℃ 356℉

TYPICAL PROPERTIES - CONTINUED

Min Operating Temp (℃) Product Colour Rolls per Carton Rolls per Case Shelf Life Smallest Saleable Unit Tape Grade Tensile Strength (Metric) Total Tape Thickness without Liner (Imperial) Total Tape Thickness without Liner (Metric) Voltage Rating
0℃ Grey, Sky Blue 1 24 5 Year Roll Professional 82.7 Kilopascal 20 mil 0.51 mm 35 kV

PHYSICAL PROPERTIES

Thickness - Peak ASTM D2148 Thickness - Edge ASTM D2148 Tensile Strength ASTM D412 Elongation at Break ASTM D412
.020 in .008 in 1000 psi 300%

ELECTRICAL PROPERTIES

Arc Resistance ASTM D495 Fusion (Self Adhesion) ASTM D2148 Volume Resistivity ASTM D1458
1 min. (minimum) 0.125 in 7 x 1014 ohm•cm

DIMENSIONS AND CLASSIFICATIONS

Overall Length (ft) Overall Length (m) Overall Width (in) Overall Width (mm)
30 9.1 1 25.4

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