3M uses cookies on this site Detailed information on cookies and their use can be found in our Privacy Policy. You can customize the cookie-related settings at any time by clicking on Cookie Preferences in the footer of this page.

By clicking "Accept and Proceed" you acknowledge that you agree to the use of cookies on your computer

Accept and Proceed

Skip to Primary Navigation Skip to Site Navigation Skip to Main Content All 3M.com Site Map

Electrical Supplies

Market Solutions
Videos & News
Customer Services

Scotch® 70 Premium Silicone Rubber

Scotch® 70 Silicone Rubber Electrical Tape is a 0.3mm thick, high temperature arc-and track-resistant tape composed of self-fusing, inorganic silicone rubber, with easy-tear and easy-strip liner.

Locate A 3M Approved Distributor…
Find A Distributor
Need to order large quantities?
  • Features + Applications
  • Specifications
  • Video + Downloads
  • Features

    • Excellent track resistance

    • Excellent arc resistance

    • Excellent ozone resistance

    • High dielectric strength

    • Class “H” material (180°C continuous operation)

    • Workable in extremely low temperatures

    • Excellent conformability

    • Excellent instantaneous fusion; does not need to be held down

    • Colour: Munsell 5BG7.0/0.4 Sky Blue Grey

    • Available in size: 25mm x 9m


    • As an over-wrap for protection of terminating high-voltage cables against arcing and tracking

    • As primary insulation where Class “H” (180°C/356°F) temperatures are encountered ie. silicone rubber cables

  • Specifications


    Sky Blue Grey



    Temperature Range

    The tape must be capable of operating continuously at Class H temperatures (180°C/356°F)

    Material Type

    Self-fusing, inorganic silicone rubber

    Backing (Material Type)

    Easy-tearing and easy stripping polyester liner

    Width x Length

    25mm x 9m

    Dielectric Strength

    34kV/mm Arc resistance ASTM-D1000-76 1 min. (minimum)

    Breaking Strength

    ASTM-D1000-76 21N/10m



  • Brochures

    • Electrical Tapes Brochure


    • Scotch® 70 Premium Silicone Rubber Datasheet
Featured Product

Scotch® 23 Linered Premium Rubber

Learn More

3M offer a comprehensive range of PVC insulation tapes from general purpose to the best premium grade tape!

Learn More
Locate A 3M Approved Distributor…
Find A Distributor