High Performance Broadband Pyramidal RF Absorber
PPG C-RAM® SFC is a series of high performance broadbanded RF absorbers made from specially treated low density polyurethane foam.
Using a steep pyramid design which provides an impedance gradient, PPG C-RAM SFC provides premium performance in anechoic chambers at both normal and off-normal incidence angles.
These products meet all of the fire retardancy requirements:
• NRL Specification 8093 tests 1, 2, and 3
• MS-8-21 tests 1, 2, and 3
• T.I. drawing 2693066
• ASTM E-84-97a, Class A
• UL94 rated HF-1
Standard sizes of PPG C-RAM® SFC are listed below, ranging from a 3 inch to 96 inch height. PPG C-RAM SFC-3 up through SFC-72 are shaped as conventional pyramids and supplied as square 24 inch (610 mm) panels.
- A twisted design is offered in a 72 in. and 96 in. grade.
- The twisted pyramid design improves the wide angle performance, and because of the extended shoulder height, exhibits less drooping of the tips for some applications.
Discover the Future of Flight
Have questions or need support for your aerospace project? Contact PPG’s aerospace team today for guidance and tailored solutions.
- In addition to simply supplying a bill of materials, Cuming Microwave designs and installs complete anechoic chambers.
- Chambers can be designed to meet your specifications, and an entire kit of materials is supplied, including factory pre-cuts of special fitting parts.
- We can install all materials or supply technical support to help you complete your own installation.
Shelf life
- 5 yrs. Minimum