3M™ EMI Copper Foil Shielding Tape 1181, 23 in x 60 yd (58.42cm x 54.9 m), logroll untrimmed, 1 Roll/Roll. 3M™ Copper Foil EMI Shielding Tape 1181 is a conductive adhesive shielding tape that is designed for applications that require reliable, point to point electrical contact. It comes on a removable liner for easy die cutting and handling. The tape is rated for 600V dry applications.