WOREMOR SilverLoom silvered knit fabric
Semi-transparent silver-plated nylon knit declared at 50 dB with 0.6 Ω per 100 mm surface resistance, conductive enough to be grounded and therefore usable against low-frequency electric fields as well as RF.
Last verified 12 August 2026.
Also searched as: SilverLoom, TullX, silver tulle
- Manufacturer
- WOREMOR
- Model
- SilverLoom
- Material class
- Metallised shielding fabric (silver or copper on polyester)
- Fields addressed
- radiofrequency, elf electric
- Grounding required
- Yes — ungrounded installation can make things worse
- Surface resistance
- 0.6 Ω per 100 mm, 8 Ω per metre
Declared attenuation
Each figure is the manufacturer's declaration for the frequency and the layer or coat count named next to it. The percentage is computed from the dB value, not quoted separately.
- 1 GHz, single layer, flat sample
- 50 dB — removes 99.999% of the incident power density (1 part in 100,000 gets through)
Test method
Manufacturer-declared at 1 GHz, measured to ASTM D4935-10 or IEEE Std 299-2006, with a screening report per material.
Construction
Knitted silver-plated nylon, 84% nylon and 16% silver, 28 g/m², 150 cm wide, RoHS compliant.
Typical application
- Net curtains
- Canopies
- Room dividers in laboratories and practices
What the figure does not cover
- Grounding is required for the low-frequency electric field claim; ungrounded, it is an RF-only material
- Silver plating tarnishes and abrades, and washing or movement reduces conductivity without any visible change
- A knit stretches: the declared figure is for the relaxed flat fabric, and stretched or distorted areas open the loops
- Declared on a flat sample, so seams, closures and the gap at floor level set the installed result
What these figures are
Every attenuation value on this page is the manufacturer's own declaration for a flat sample in a test fixture, reproduced so that products can be compared on the same terms. It is not a regulatory limit, not an independent test, and not a prediction of what a meter will read after installation — an installed shield is set by its weakest path, so the only figure that describes a room is a before-and-after measurement of that room.
Where to buy
EMR Shielding Solutions is a related company of WebKMS, which publishes EMFBase, and sells this product. The link is a stockist listing only: every figure on this page comes from the manufacturer's own documentation, and no specification, limitation or citation depends on it.
Related records
- Metallised shielding fabric (silver or copper on polyester)
Curtains, bed canopies and clothing woven with silver or copper, typically quoted at 30–50 dB across the cellular and Wi-Fi bands — enough to remove 99.9% of incident power density when installed without gaps.
Shielding & remediation
- Shielding attenuation
Decibels of field reduction provided by a material. Every 10 dB is a factor of 10 in power density: 30 dB removes 99.9%, 10 dB removes 90%.
Quantities & units
Sources
- woremor-silverloom WOREMOR SilverLoom silvered knit shielding fabric — technical data — WOREMOR. manufacturer, link checked 2026-08-12.
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