3M Shielding Tape 1115B consists of a 4.5mil aluminum foil backing and a unique electrically conductive pressure sensitive adhesive.3M EMI Shielding Tape 1115B has an aluminum foil backing with a pressure sensitive, electrically conductive, acrylic adhesive that ensures firm adherence. The low electrical resistance makes this tape suitable for grounding applications. The tape's thickness offers good EMI shielding effectiveness and structural support properties. It comes on a removable liner and is easily die cut into complex shapes. RoHS 2002/95/EC Compliant.