3M™ Scotchfil™ Electrical Insulation Putty Tapes, 1-1/2 in x 60 in, Black (500-417507) 1 RollThis tape can be wrapped, stretched or molded around irregular shapes for quick, smooth insulation build up Use 3M Scotchfil putty to insulate connections up to 600 volts and to round out high voltage connections to gear, smooth bus bar irregularities, and make a moisture seal at ground wire exits in high voltage splice