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The common kitchen aluminium foil works. We now use it in our lab to shield stuff. A few layers of it works much better than the expensive stuff from 3M.
by qtech 6y ago
The common kitchen aluminium foil works. We now use it in our lab to shield stuff. A few layers of it works much better than the expensive stuff from 3M.
- walterbell 6y agoIs shielding affected by an insulating layer, e.g. paper or foam used in thermal insulation or vapor barriers? Those are available with two layers of aluminum, in 4' wide rolls with fiber strands for strength, at much lower cost ($0.20 per sq ft) than overpriced shielding fabrics. There are barrier variations, some do use aluminum, e.g. https://www.radiantguard.com/products/radiant-barrier-ultima-foil-insulation-u500b https://www.radiantguard.com/products/radiant-barrier-ultima...
- lnsru 6y agoWhat about reflections inside? I bet foil is very reflective and is good if you only need shielding from outer radiation.
- qz2 6y agoThey are usually lined with absorber foam. That's the expensive bit.
- BuildTheRobots 6y agoWhat frequencies are you blocking and at what powers? I've spent a while trying to build a poor man's fariday cage for phone testing and found it almost impossible to isolate handsets.