Easy-Splice Heat Shrinkable End Cap 4/0 AWG - 750 MCM These caps replace greases, tapes, epoxy, encapsulation, or dips. In most sizes, installation may be accomplished in less than one minute. Heat-shrinkable end caps provide for efficient and positive cable end sealing. Made of thermally stabilized polyolefin, the interior of the HSC is coated with a meltable sealant to assure a watertight seal, complete insulation, abrasion and corrosion resistance. Seals may be affected over lead, steel, aluminum, copper and all standard plastic and elastomeric insulating materials and conduit. HSC end sealing caps are qualified to ANSI C119.1-1986 and rated to ICEA electrical withstand test for 1,000 volts. HSC end sealing caps can be used as a live seal for cables carrying up to 1,000 volts. They can also be used as end seals for storing and pulling de-energized cable.