Made of specially formulated polyolefin irradiated and thermally stabilized to give the material “elastic memory”. When a proper amount of heat is directly applied to the shrink sleeve, it will permanently shrink to its original unexpanded diameter tightly cover and “mold” itself into irregular shapes The interior of the sleeve is coated with an adhesive that assures a watertight seal after shrinking For use on standard poly- or elastomeric-insulated/jacketed cables or lead-jacketed cables, which may include aluminum or steel armoring. RUS accepted for use as a secondary tap or splice cover. May be used for jacket repair on cables up to 35 kV Heavy wall heat shrink is also available without sealant. Medium wall heat shrink and flame retardant heavy wall heat shrink also available, with or without sealant (not UL Listed)