The 3M EMI Absorber AB5000SHF Series (Halogen Free) consists of flexible soft metal flakes filler loaded polymer resin and acrylic pressure sensitive adhesive and is available in sheets.
This absorber is designed to suppress radiated noise from electrical devices for broadband radio frequency ranges. Common uses include mobile phone (SAR reduction), computer, digital still camera, RF block, military equipments for radar avoidance and stealth performance. Many factors determine the true attenuation of an electromagnetic absorbing material, including shape and thickness, intimacy of substrate contact, smoothness of application surface, strength and frequency of the EMI signal, etc. However, using standard tests and fixtures, it is possible to determine a value for the signal attenuation.