ECCOSORB^® FGMU is a series of thin, flexible, broadband, magnetic loaded urethane absorbers.  Both ECCOSORB^® FGMU-40(1.0mm thickness) and FGMU-125 (3.3mm thickness) operate as free space absorbers in the range of 2.0 to 12.0 GHz. The thinner FGMU-40 will easily conform to contoured surfaces and both FGMU-40 and FGMU-125 can be bonded to metallic or non-metallic structures.  FGMU is completely impervious to moisture and can be subjected to outdoor environments and high altitudes, but is not recommended for space applications.  It can be easily cut with a knife or die and can be held in place with an optional Pressure Sensitive Adhesive (-SA).

ECCOSORB^® FGMU is used to line cavities in which antennas operate.  These may be aircraft nacelles or caps to isolate radiation for test purposes.  FGMU is even effective at high power levels and has a service temperature greater than most silicone rubber absorbers.