3M Scotch Self-Fusing Silicone Rubber Electrical Tape 70 - 7000031081, 7000006225

Product overview

3M 70 (7000031081, 7000006225) is a high-performance Self-Fusing Tape. It’s made from thick, inorganic silicone rubber for superior electrical insulation in high-voltage, high-temperature environments. With its excellent arc and track resistance, 3M Tape 70 is ideal for insulating and sealing bus bars, terminations and splices. This conformable, non-adhesive Scotch Tape 70 fuses instantly, delivering long-lasting protection across a wide range of industrial and utility applications.
Part Numbers: 7000031081, 7000006225.

3M Scotch Self-Fusing Silicone Rubber Electrical Tape 70

Designed for electrical insulation, sealing and overwrapping in extreme conditions, Scotch 70 provides excellent dielectric strength and thermal stability. Its thick silicone rubber backing and self-amalgamating design ensure rapid build-up and durable performance over irregular shapes. Whether you’re wrapping motor leads or sealing high-voltage terminations, 3M 70 offers dependable protection against UV, moisture and chemical exposure.

Key Features & Benefits

  • Self-fusing silicone rubber construction for clean, adhesive-free application
  • Excellent insulation and sealing for high-voltage cables and bus bars
  • Withstands extreme temperatures up to 180℃ (356℉)
  • Outstanding arc and track resistance for exposed environments
  • Rated up to 34 kV/mm dielectric strength with high elongation
  • Conforms easily to irregular surfaces and tight spaces
  • UV- and chemical-resistant for rugged outdoor performance
  • RoHS 2011/65/EU compliant
  • Suitable for industrial, utility, automotive, marine, and renewable sectors
  • Available in 25 mm and 25.4 mm widths, 9.1 m (30 ft) rolls
  • Supplied in individual rolls for efficient field use

3M Scotch 70 – Trusted Performance for High-Stakes Electrical Applications

From utility substations to offshore platforms, 3M 70 delivers robust electrical insulation when failure isn’t an option. Its instant fusion eliminates the need for pressure or adhesives, while the tough silicone composition protects against harsh environmental and electrical stressors. Whether you’re insulating wind turbine connections or overwrapping termination points, Tape 70 offers reliability, speed and long-term stability.

When durability and safety are critical, trust 3M Tape 70 and its proven Scotch technology to protect your electrical infrastructure in the world’s toughest conditions.


For Additional Information on 3M Scotch Self-Fusing Silicone Rubber Electrical Tape 70 (7000031081, 7000006225), 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 Automotive and Marine, Commercial Construction, Industrial Construction, Irrigation, Maintenance and Repair Operations, Mining, Solar, Wind Power, Appliance and Fixture, Utility Insulation, Sealing, Electrical Maintenance Silicone 0.3 mm Scotch® 34 kV/mm 450.0% UV-resistant, Chemical-resistant, Self-sticking 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)
0℃ Grey, Sky Blue 1 24 5 Year Roll Professional 82.7 Kilopascal 12 mil 0.3 mm

PHYSICAL PROPERTIES

Thickness ASTM D1000-76 Tensile Strength ASTM D1000-76 Elongation at Break ASTM D1000-76
0.3 mm 21.02 N/10 mm 450%

ELECTRICAL PROPERTIES

Dielectrical Strength ASTM D1000-76 Arc Resistance ASTM D1000-76
34 kV/mm 1 min. (minimum)

Properties measured at room temperature 23°C unless otherwise stated.


DIMENSIONS AND CLASSIFICATIONS

Overall Length (ft) Overall Length (mm, m) Overall Width (in) Overall Width (mm)
30 9.1, 457 0.984, 1 25, 25.4

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