Scotch Linerless Rubber Splicing Tape 130C, 30 ft

Yes. The 130C is a self-fusing ethylene propylene rubber tape, so it vulcanizes into a solid moisture-sealed insulating mass, but it has no tough outer jacket. Normal practice is to overwrap the finished build-up with a vinyl electrical tape to protect it mechanically and from abrasion. The rubber tape itself is UV resistant, so outdoor exposure is not the issue, physical protection is.

Four widths are offered, all 30 ft long: 3/4 in, 1 in, 1-1/2 in and 2 in. The 3/4 in and 1 in widths suit small conductor splices and tight work in boxes; 1-1/2 in (MPN 7000006086) is the common choice for building up medium and high voltage splice bodies, and 2 in covers large cable and fast build-up on big conductors.

No liner. The 130C is a linerless rubber splicing tape, so you pull it off the roll and wrap, with no backing paper to strip and discard as you go. That makes one-handed work on an energized-adjacent or overhead splice easier than with lined rubber tapes.

Rated to 194 F (90 C) continuous, with a minimum operating temperature of 0 C. The rubber backing also dissipates splice heat rather than trapping it, which matters on conductors running near their thermal limit. Below freezing, stretch and conformability drop off, so apply at or above 0 C.

The 130C fuses to itself to form a moisture seal with void-free build-up, and the rubber-resin adhesive plus ethylene propylene rubber backing resists UV, so it is used for wet and outdoor splice insulation. Insulation resistance is greater than 10^15 ohms. For buried work, overwrap for mechanical protection, since the rubber layer alone has no abrasion jacket.

Each layer is 30 mil (0.76 mm) thick with no liner to subtract. Half-lapping doubles that to roughly 60 mil of wall per pass, which is how electricians count passes to reach the insulation thickness their splice kit or spec calls for.

Elongation at break is 850 percent and tensile strength is 250, so the tape stretches far enough to neck down tightly over lugs, split bolts and irregular connector shapes without tearing. Stretching it thin while wrapping is what drives the self-fusing action and gives void-free build-ups.

Packaging runs one roll per carton and 12 rolls per case. Each roll is 30 ft (9.1 m) long and the tape is black.

The 130C is ASTM approved and compliant with RoHS 2011/65/EU, and it is made in the United States. That covers the two things institutional and government procurement usually ask for on tape submittals.