Conductive Electrical Tape Tape Backing Material Copper/Nickel Coated Polyester 1 in 15 ft Tape Color Gray Tape Sub-Type Corrosion Resistant Metallized Fabric Tape Adhesive Material Acrylic 4.3 mil 3M(TM) CN3190 Minimum Tape Performance Temperature 50 Degrees F Maximum Tape Performance Temperature 85 Degrees F Shielding Effectiveness Fair (50 to 70dB) Product Form Continuous Roll Tape Adhesive Format Single-Sided