3M 23 Splicing Tape 30 mil 2 in x 30 ft Black

Splicing tape for high-voltage insulation

This splicing tape is built for insulating electrical connections up to 69 kV. It uses ethylene propylene rubber backing with a self-fusing rubber adhesive that bonds to itself without sticky residue. The tape performs reliably from 32 to 194 degrees Fahrenheit. It is suited for electricians and maintenance crews working on high-voltage cables and splices.

30 mil thickness and self-fusing adhesive

The critical specification is the 30 mil thickness combined with a self-fusing adhesive format. This thickness provides the dielectric strength needed for 69 kV ratings, while the self-fusing property creates a void-free, moisture-resistant insulation layer that does not rely on conventional adhesion. Selecting a thinner tape or a non-fusing type would not meet the same insulation requirements.

Continuous roll format for custom lengths

The tape comes as a continuous roll measuring 2 inches wide by 10 yards long, allowing installers to cut exact lengths for each splice. This reduces waste compared to pre-cut strips and accommodates irregular cable diameters. The black finish aids UV resistance in outdoor environments. No additional tools or activators are required for application.