Flexible foam sheet broadband microwave absorber
PPG C-RAM® LF is a series of lightweight, flexible, multi-layer polyurethane broadband microwave absorbers.
Designed to provide typically -20 dB of reflectivity reduction in a frequency range dependent upon grade.
Material is carbon loaded and therefore, electrically conductive. Material is also fire retardant.
Standard sheets are 24 in. x 24 in. (610 mm x 610 mm). PPG C-RAM® LF can be supplied in other sizes or per customer specified configurations.
PPG C-RAM LF can be supplied with a rubber coating (-RC) to prevent moisture uptake in high humidity environments, or it can be wrapped in a weatherproof olive green neoprene fabric tarp (-W) for outdoor use.
For long term sun and rain exposure, the material can be wrapped in a white colored Hypalon fabric (-HCN).
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Service temperature
- 180°F
Shelf life
- 5 yrs. Minimum Or 1 yr. if supplied with adhesive backing