Properties

SILVER-TWIN is a compact cotton/silver fabric for the protection against high-frequency (HF) radiation. Typical application as curtain, to sew clothes, handy bags, etc..

Special feature: The frontside 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 frontside!

Maximum high screening attenuation, even at very high frequencies!
Excellent cost/performance ratio
Contactable (groundable) to shield LF electric fields
Textile characteristics: Washable, easy to iron and process
Quality grade: Very high

Silver products

Silver products discolour with time and often already have discolorations right from the start. If you don’t want to accept discolorations, please choose Swiss-Shield® fabrics.
Silver fabrics have a limited durability, depending on the frequency of movement.
Our silver fabrics do not contain any nano silver, but a thick metallic silver coating.

Technical data

Width: 150 cm, +/- 2 cm
Length: Available by the meter
Attenuation: 60 dB
Color: 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)

Care instructions

Gentle cycle at 30°C
No drying in tumble dryers
No bleaching
No chemical dry-cleaning
Wash only with our special washing detergent TEXCARE, without enzymes or bleaching agents

Grounding

This product with an electrically conductive surface has to be integrated into the functional-equipotential bonding (FEB). Please find suitable grounding accessories under "Grounding".

Shielding attenuation HF & LF

This product shields high frequency electromagnetic fields (HF). Unless otherwise stated, the indicated dB-values apply to 1 GHz. Measurement from 600 MHz to 40 GHz according to standards ASTM D4935-10 or IEEE Std 299-2006.

This product with an electrically conductive surface shields low-frequency alternating electric fields (LF).

Laboratory & expert report of shielding attenuation up to 40 GHz

We have already invested in our own professional EMV laboratory years ago. We not only use it to create our laboratory screening reports but also to check each batch daily. Additionally, we have all our products checked by an independent, well-respected expert. Double checked for twice the safety. Please find the reports above at the downloads.

Ready for 5G

Some companies offer "special" 5G-products. This products shields all 5G-frequencies, even without advertising this! Find two gray bars in all shielding diagrams with the 5G frequency spectrums FR1 (600 MHz – 6GHz) and FR2 (24 GHz – 40 GHz).