3M Flux Field Directional Material (FFDM) EM25TP is a composite material consisting of a carrier resin, magnetic fillers and an optional acrylic pressure sensitive adhesive (PSA) and optional black PET top film layer.3M FFDM EM25TP is designed to interact and influence an Electro-Magentic (EM) field. It is designed to efficiently couple to the EM field and redirect and focus the field as desired in a given application or to provide EM absorbing.