From bigclivedotcom.

I’m not sure what the primary use of this material is, but it is marketed for protection against 5G radio signals and RF card-readers.

It’s amazingly supple for its high conductivity. The texture is similar to lightweight waterproof clothing made of PU-nylon. It’s not waterproof though, and has a very porous weave making it very interesting for use in electroosmosis style electrode applications.

It could also be cut and glued into enclosures for RF shielding, but would need great care to ensure that all edges were made safe against shedding conductive threads into equipment.

A test over the full sheet shows a resistance so low that it can’t be measured accurately with a standard multimeter.

The composition is described as being copper, nickel and polyester. Looking at it through a microscope just looks like fine metallic threads, suggesting it may be fine fibres of a nickel alloy added into standard polyester thread. I don’t think it’s purely metal as it is soft and doesn’t seem to stretch or tear easily.

Quite an amazing fabric that will have many specialist uses.

I bought these bits from AliExpress (not a sponsor).

The smooth unpatterned stuff:-
https://www.aliexpress.com/item/1005006958808606.html

The diamond weave style:-
https://www.aliexpress.com/item/1005006674939794.html

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