Silver Twin
Tight cotton-/polyester fabric, 57 dB attenuation (99.9998 % shielding effectiveness). Front-side white cotton, backside silver-/polyester fibre. Perfect as a curtain.
SILVER-TWIN is a compact cotton/polyester fabric for the protection against high-frequency (HF) radiation.
Typical application as curtain, to sew clothes, handy bags, etc
Special feature: The front side is made of white cotton, while the backside is densely woven with a silver thread.
Despite the extremely high attenuation due to the dark silver threads on the backside, this fabric has a light gray front side!
Maximum screening attenuation, even at very high frequencies!
Excellent cost/performance ratio
Earth-able (groundable) to shield LF electric fields
Textile characteristics, easy to wash and iron
Width: 150 cm, +/- 2 cm
Length: Available by the meter
Attenuation: 57 dB at 1 GHz
Colour: Frontside light gray, backside silver.
Attention: Due to silver oxidation the front side can have very slight discolouration, this is no quality defect!
Raw materials: 50 % cotton, 35 % polyester, 15 % silver
Weight: 150 g/m²
Dimension stability: +/- 3 %
Surface conductivity: 0.25 ohm / inch (2.54 cm)
Grounding
Due to the surface conductivity this fabric can be grounded to shield low frequency (LF) electric fields. For
professional grounding we recommend our Grounding-kit.
Shielding attenuation
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. The line in the diagram stands for the radial direction of polarisation (both directions, horizontal/vertical) and indicates the attenuation achievable in practice. You find the expert report above.
Pricing
Please email for a quote, if buying more than 2m. Prices come down considerably with larger amounts