... adhesive to the foil backing.Common uses include grounding and EMI shielding in equipment, components, shielded rooms, etc. The copper foil ... contact, smoothness of application surface, strength and frequency of the EMI signal, etc. However, using standard tests and fixtures, it is ... of 60dB to 80dB (30 MHz to 1 GHz). 3M EMI Copper Foil Adhesive Shielding Tape 1181