MATERIALS, ADHESIVES AND COATINGS
C-RAM EVA / SFC-MP / ODP / CFC higher-power, ventilated, all-weather and cleanroom pyramidal absorbers
Country: · Model: C-RAM EVA / SFC-MP / ODP / CFC
C-RAM EVA, SFC-MP, ODP and CFC are special versions of the SFC pyramidal absorber for higher power, ventilation, outdoor installation and cleanrooms. SFC-MP withstands 2.0 W/inch² without airflow and 3.0 with airflow. The panel base is 24×24 inches (610×610 mm).
- EVA
- open-cell foam, 15 pores/inch; heights 4, 6, 8, 12, 18, 24, 36 inches; base 24×24 inches; ~2 W/inch² without airflow; up to +82 °C (180 °F)
- SFC-MP
- medium-power pyramids: 2.0 W/inch² without airflow, 3.0 W/inch² with airflow; flame resistance NRL 8093, ASTM E-84-97a class A, UL94 HF-1
- ODP
- large-pore foam for outdoor installation; heights 4–24 inches; reflectivity as SFC; up to +82 °C; does not meet NRL 8093 and is for outdoor use only
- CFC
- for class 10 000 cleanrooms; 6 standard grades 4–36 inches; 100 MHz – 30 GHz; in an antistatic PE cover; up to +49 °C (120 °F)
Technical specifications
| EVA | open-cell foam, 15 pores/inch; heights 4, 6, 8, 12, 18, 24, 36 inches; base 24×24 inches; ~2 W/inch² without airflow; up to +82 °C (180 °F) |
|---|---|
| SFC-MP | medium-power pyramids: 2.0 W/inch² without airflow, 3.0 W/inch² with airflow; flame resistance NRL 8093, ASTM E-84-97a class A, UL94 HF-1 |
| ODP | large-pore foam for outdoor installation; heights 4–24 inches; reflectivity as SFC; up to +82 °C; does not meet NRL 8093 and is for outdoor use only |
| CFC | for class 10 000 cleanrooms; 6 standard grades 4–36 inches; 100 MHz – 30 GHz; in an antistatic PE cover; up to +49 °C (120 °F) |
| Frequency range | from 100 MHz and above (EVA, ODP, SFC-MP) |
| Base | 24×24 inches (610×610 mm), custom sizes for air ducts |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
EVA is made of very open-cell foam with 15 pores per inch, so air passes through it, and the foam is laid on air duct grilles. Without airflow it withstands about 2 W/inch²; heights are 4, 6, 8, 12, 18, 24 and 36 inches, and the operating temperature is up to 180 °F (82 °C). SFC-MP is designed for medium power density, and instead of the 0.8 and 1.25 W/inch² of standard SFC it allows 2.0 W/inch². The material complies with NRL 8093, MS-8-21, ASTM E-84-97a class A and UL94 HF-1. ODP is a version of EVA for outdoor ranges, 4–24 inches high, treated with a flame retardant, but it does not pass NRL 8093, so it is not used indoors. CFC is intended for class 10 000 cleanrooms; there are six grades from 4 to 36 inches, the range is 100 MHz – 30 GHz, and the pyramid is sealed in an antistatic polyethylene cover.
How to choose
The type is chosen by the installation conditions. EVA is used for air duct grilles, SFC-MP for medium power, ODP for an open site and CFC for cleanrooms. The geometry and reflectivity of all grades match the SFC of the same height, so they can be combined in one chamber without recalculation. If the power is below 1.25 W/inch², standard C-RAM SFC pyramids, which work from 70–100 MHz, are enough.
Request a price and lead time
C-RAM EVA / SFC-MP / ODP / CFC higher-power, ventilated, all-weather and cleanroom pyramidal absorbers. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What power can C-RAM SFC-MP withstand?
2.0 W/inch² without airflow and 3.0 W/inch² with airflow, whereas standard SFC handles only 0.8 and 1.25 W/inch².
Why is EVA laid on air duct grilles?
Foam with 15 pores per inch lets air through, so reflections are damped and the airflow is hardly reduced.
Can ODP be installed indoors?
No, ODP does not pass the NRL 8093 test, so it is intended for outdoor installation only.
What rooms is CFC intended for?
Class 10 000 cleanrooms, for example for testing satellites and sensitive electronics.
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