# 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.

- Canonical URL: https://emfbase.com/materials/woremor-silverloom
- Collection: Shielding products
- Record id: `materials:woremor-silverloom`
- Status: verified
- Last verified: 2026-08-12
- JSON: https://emfbase.com/api/materials/woremor-silverloom
- Also known as: SilverLoom, TullX, silver tulle

## Key values

- **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](https://www.emrss.com/products/woremor-silverloom) (rel: nofollow noopener)

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)](https://emfbase.com/shielding/fabric): 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 attenuation](https://emfbase.com/quantities/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%.

## Sources

- `woremor-silverloom` WOREMOR. *WOREMOR SilverLoom silvered knit shielding fabric — technical data*. https://www.woremor.com/products/woremor-tull-x — manufacturer, link checked 2026-08-12

Data licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Dataset version 2026.08.1. Retrieved from EMFBase, https://emfbase.com.

This record is reference data, not medical or legal advice. Regulatory limits, scientific guidelines and precautionary values are labelled separately and answer different questions.