High Loss Microwave Absorber (C-RAM: FDSS)
PPG C-RAM® FDSS is a thin, flexible, magnetically filled silicone rubber sheet stock, which has high loss at UHF frequencies. It is similar to PPG C-RAM GDSS, except that it has higher magnetic loss at lower frequencies.
PPG C-RAM FDSS is electrically non-conductive and it has a high dielectric strength.
PPG C-RAM FDSS has a high magnetic loss tangent from 300 MHz to 3 GHz. Generally, thicker grades are required to attenuate lower frequencies to the same degree as a thinner grade at higher frequency.
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Standard sheet size is 12 in. x 12 in. (305 mm x 305 mm). PPG C-RAM® FDSS is available in three standard thicknesses -- .030 in., .060 in., and .125 in.
PPG C-RAM FDSS can be supplied in other sizes, thickness or per customer specified configurations upon request.
PPG C-RAM FDSS can also be supplied with a peel-and-stick pressure sensitive adhesive backing, order as FDSS/PPGA.
As a standard, the PPG C-RAM FDSS base material is silicone, but it can also be supplied in a urethane base version.
Service temperature
- 400°F for Silicone based , 250°F for Urethane based
Shelf life
- 5 yrs. Minimum Or 1 yr. if supplied with adhesive backing