RS-4700

Resin Systems
62 Rte 101-A
Amherst, NH 03031

RIGID MICROWAVE ABSORBING MATERIAL –  RS-4700

RS-4700 is a rigid epoxy based magnetic castable microwave absorbing material capable of continuous operation up to 350of. This material is ideal for fabrication of low power loads, attenuators, ring chokes and other RF absorbing elements at microwave frequencies. RS-4700 can be supplied in custom cast configurations, standard stock shapes of plates, rods and bars, or in pourable kits.

APPROXIMATE PROPERTIES

DENSITY .152 LB/IN3
DIELECTRIC CONSTANT @ 10 GHZ 22.0
LOSS TANGENT @ 10 GHZ .03
PERMEABILITY @ 10 GHZ 1.3
ATTENUATION @ 10 GHZ 135 dB/IN.
VOLUME RESISTIVITY >1.0 X 10`11 @ 77oF
DIELECTRIC STRENGTH >25 V/MIL.
FLEXURAL STRENGTH 15,000 PSI
TENSILE STRENGTH 7,500 PSI
IZOD IMPACT STRENGTH .35 FT. LB/IN
THERMAL EXPANSION 19 X10-6 IN/IN/oF
THERMAL CONDUCTIVITY 5.8 (BTU)(IN)/(HR)(FT2)(oF)
SPECIFIC HEAT .29 BTU/ (LB)(F)
WATER ABSORPTION (20 DAYS @ 77oF) .05%
NASA OUTGASSING RP 1124 – TOTAL MASS LOSS 0.24%
NASA OUTGASSING –
COLLECTED VOLATILE CONDENSABLE MATERIALS
0.01 %
MAXIMUM USE TEMPERATURE 350 oF
FUNGUS (NON-NUTRIENT PER MIL STD 810) YES
JUNE 1995

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