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Ten black self-fusing mastic tape pads, pre-cut 3 by 5 inches

Thomas & Betts

Thomas & Betts Mastic Tape 6 mil 3" x 5" Black PK10 electrician tool

SKU CH-RGGQ-GPF1F

Self-fusing vinyl mastic tape insulates to 600 V and operates from 14 °F to 118.4 °F, supplied as ten pre-cut 3" × 5" black pads

  • Color and finishBlack
  • Self-fusing rubber adhesive seals out moisture
  • Pre-cut 3" x 5" pads speed up installation
  • 600 V rating covers standard electrical work
  • 10-piece pack keeps spares on hand
  • Operates from 14 °F to 118.4 °F

Mastic tape for electrical insulation

This pack contains ten pre-cut pieces of black vinyl mastic tape measuring three inches by five inches with a six mil thickness. It is intended for electricians and maintenance technicians who need a self-fusing rubber adhesive for splicing and insulating cable up to six hundred volts.

Operating temperature range and voltage rating

The tape performs from fourteen degrees Fahrenheit up to one hundred eighteen point four degrees Fahrenheit, maintaining adhesion and seal across that span. Its rubber-based self-fusing layer bonds without heat and is rated for continuous use at six hundred volts AC.

Pre-cut format and package quantity

Each piece is supplied pre-cut to the stated dimensions, removing the need for trimming on site. The pack quantity of ten pieces allows multiple splices or repairs from a single package.

How it compares

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

Price $27.99
Cheaper than about 87% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameTHOMAS & BETTS
Color and finishBlack

Questions about this item

How do I apply the self-fusing rubber adhesive correctly on a splice?

Stretch the vinyl-backed tape while wrapping so the rubber adhesive fuses to itself; the step most people skip is maintaining tension through the full overlap.

When should I replace tape that has been on a 600 V circuit?

Replace any length that shows cracking, loss of tack, or carbon tracking; the rubber adhesive does not have a published service interval.

At what temperature does the tape stop performing reliably?

The minimum performance temperature is 14 degrees F and the maximum is 118.4 degrees F; sustained heat beyond that range degrades the self-fusing bond first.

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