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White glass-cloth electrical tape roll, 3/4 inch wide, matte finish

Scotch

Scotch 27 Electrical Tape 7.0 mil 3/4 in 66 ft White

SKU CH-A9G5-3Q9FK

Glass-cloth electrical tape with thermosetting rubber adhesive, 7.0 mil thick, rated to 600 V and 265 °F

  • Color and finishWhite
  • White tape for clear wire identification
  • 0 mil glass cloth backing for mechanical strength
  • Thermosetting rubber adhesive rated to 265 °F
  • UL Listed and CSA Certified for 600 V use
  • 150 lb-in tensile strength resists tearing under load

Electrical Tape for High-Temperature Wiring

Scotch 27 is a glass-cloth electrical tape with a thermosetting rubber adhesive designed for electrical insulation up to 600 volts. The 7.0 mil thick backing provides mechanical strength rated at 150 lb-in tensile strength for demanding splice protection.

Suited for Electricians Needing Heat Resistance

This roll suits professionals who require reliable adhesion at continuous operating temperatures up to 265 °F. It is not intended for applications requiring UV resistance or for low-voltage signal cables needing a thinner, more flexible vinyl wrap.

UL Listed and CSA Certified to ASTM D1000

The tape meets ASTM D1000 standards with UL Listing and CSA certification, confirming its dielectric and mechanical ratings for 600 V systems. The 66 ft length supplies enough material for multiple large-diameter cable splices or motor lead connections.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 91% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSCOTCH
Color and finishWhite

Questions about this item

What are the 3/4 in width and 66 ft length of the roll?

The roll measures 3/4 in wide and 66 ft long, giving a continuous length for wrapping splices and harnesses.

How do I apply the thermosetting rubber adhesive on the glass cloth backing?

Stretch the tape as you wrap so the rubber adhesive activates; the common mistake is laying it flat without tension, which reduces bond strength.

When should I replace tape rated for 265 Degrees F and 600 V service?

Replace any section that shows discoloration, cracking or loss of adhesion after prolonged exposure near the 265 Degrees F limit or after high-voltage stress.

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