3M copper foil tape 1126 tape is typically used as an EMI/RFI shielding tape for applications in the electronics industry such as static charge draining, seaming shielded rooms, cable wrapping and surface contact to non-solderable materials. - 3M copper foil tape 1126 consists of a 1 oz rolled copper foil backing and an electrically conductive, pressure sensitive acrylic adhesive. This tape is supplied on are movable liner for easy handling and die-cutting. It has excellent solder ability.