WarriorWrap WW-EF-15 Self-Amalgamating Electrical Filler Tape is strong enough for professional environments and gets the job done right the first time, every time. This tape is 1/8in thick, 1.5 inches wide, 5ft long and has a self-amalgamating, butyl-based mastic design. The strong adhesion helps stick to uneven surfaces and the tape has a non-oxidizing design that will not corrode copper or aluminum. Top breaking strength and elasticity make WarriorWrap an excellent choice for encapsulating and protecting all types of connections and devices up to 600V.