Sigint Solutions


NCV95 Carbonized Polyester Fleece

 hng100 metallized polyamide fabric
HNG100 is a compact woven, heavy metallized polyester netting for the protection against high-frequency radiation (HF) and low-frequency electric fields (LF).

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This professional product with more than 100 dB attenuation is typically used for ministries of defence, banking houses, laboratories, etc. Where competitors advertise with 100 dB, they ignore the fact that the attenuation usually drops to some 80 dB at higher frequencies which is identically to our HNG80 or HNV80! We had produced HNG100 with a very high metal content. With a restistance/square of only 0.003 Ohm and a close mesh-width the HNG100 achieves real 100 dB even at high frequencies.

The shielding attenuation is regularly tested in our own laboratory or by Professor Dipl.Ing. Pauli at the University of the German Federal Armed Forces in Munich due to the standards ASTM D4935-10 and/or IEEE-STD-299-2006.

Technical Data

  • Width: 140 cm
  • Length: By the meter / 20 m roll
  • Attenuation: 100 dB at 1 GHz
  • Weight: 140 g/m²
  • Material thickness: 0.08 mm
  • Color: Anthracite / Brown
  • Tensile strength: Very good in both directions, 220 N/mm
  • Materials: Polyester, copper, nickel, protection coating
  • Surface conductivity: 0.003 ohm (square resistance)

Material Handling

Grounding regulation
Only skilled electricians listed in the register of your electricity supplier are permitted to execute grounding measures! Pay attention to the following points: Protective measures against electric shock to DIN 57100/VDE 0100 part 410 + part 540, grounding to DIN/VDE 0100 part 410 + part 540, visual inspection and process testing to DIN/VDE 0100 part 610 part 4+5 and EMC to VDE 0100. Grounding measures are only permitted in TNS or TT networks! Grounding measures may never be executed in network forms with combined PEN wiring! A leakage/fault circuit breaker (FI/RCD) with less than 30 mA must be installed. Find more information on this in our grounding instructions sheet.

Grounding accessories
Due to the highly conductive surface this material can be contacted and grounded easy to shield low frequency (LF) electric fields. For professional grounding we recommend our grounding plug EST for self laying application, or our grounding strap EB in combination with our grouding set ES for adhesive bonding with our dispersion glue DKL90.

Material Application

In case of processing HNG80 as an intermediate layer we recommend using our dispersion glue DKL90
for adhesion. The wall and the backside of HNG80 should be coated with a paint roller. Insert the material wet on wet. Fix it manually (with disposable gloves) and press a gummed roller against the fleece to get a crease-free surface. Work quickly and strip by strip only so that the DKL90 glue does not dry. A crease-free adhesion is only possible on perfectly level surfaces! Structured surfaces (ingrain wallpaper, textured plastering) have to be smoothed. If that is not possible, we recommend using our shielding paint HSF54.