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GT 501 PU GT 502

POLYURETHANE MICROWAVE RIGID MICROWAVE ABSORBER
ABSORBER

• Vacuum production to reduce
porosities • Vacuum production to reduce porosities
• Reproducibility is ensured by rigorous • Reproducibility is ensured by rigorous
control of components control of components
• Homogeneity is ensured by a complex • Homogeneity is ensured by a complex
mixing system developed by Getelec mixing system developed by Getelec
GT 501 PU is a high-frequency absorbent material developed by our GT 502 is a microwave absorbing material developed by our
laboratory. It consists of small-diameter carbonyl spheres (approx. laboratory. It is composed of small-diameter carbonyl spheres.
5µ) dispersed in a suitable resin. Depending on how it is shaped (molded or custom-cut), SWR
performance in the Ka band is between -21dB and -30 dB.

Properties Standards | GT 501 PU Attenuation in transmission
Tests

Hardness (Shore A) ASTM D 2240 80 Properties GT 502
Density (g/cm ) ASTM D 792 3.9 ± 0.1 Reflection coefficient S 11 (dB) Working temperature (°C) -160°C to +200°C
3
Method A Density g/cm 3 4.57
Deformation at break (%) ASTM D 412 200 ± 20 Hardness (shore D) 95
Method AC
Break resistance (MPa) ASTM D 412 3 (0.20) Thermal conductivity (W/m.K) 1.7
Method AC Frequency (GHz)
Frequency (GHz) Tensile strength (Mpa) 56
Tear strength (N/mm) NF EN ISO 527-1
ASTM D 624 C 21 (±2)
Elongation at break (%) 2.4 Vector analysis of GT502 magnetic permeability and dielectric
constant up to 18 GHz (tests on 3 samples)
Working temperature -51°c to +135°C NF EN ISO 527-1
Dielectric constant
Sheet size (cm) 6.96 cm * 60.96 cm Humidity recover Insignificant

Thickness (mm) 2.38 mm +/- 0.127 TML (%) 0.206
Color Grey RML (%) 0.124

Flame retardant UL94 HB CVCM (%) 0.004
TML <1.0% ESA - ECSS-Q-ST-70-02C standard Yes
Frequency (GHz) compliance
Degassing CVCM <0.10%

Water vapor
recovered 0.13%

available formats Magnetic permeability µ

Customized cutting
Adhered by vulcanization
Sheet

Frequency (GHz)

80
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Tel : +331 39 20 42 42 | info@getelec.com