Charcoal for coil shielding material

[jladre]

Does anyone her tried to use charcoal as raw material for coil shield. I found it to be conductive and the cheapest.

[homefire]

Never tried it. Don't see why it wouldn't work. Sure are a lot less messy options I would think. Kinda of Ironic. Most times you want to paint something Electronic or Electrical your hunting the world for some NON Conductive paints. We want the Conductive and have issues finding the right stuff. LOL

[jladre]

Never tried it. Don't see why it wouldn't work. Sure are a lot less messy options I would think. Kinda of Ironic. Most times you want to paint something Electronic or Electrical your hunting the world for some NON Conductive paints. We want the Conductive and have issues finding the right stuff. LOL

Hahaha.. you are right homefire! I will try it tomorrow and update the result. Thats the only option i have now. Alu and cu foil doesnt work good for me. Graphite powder cost 35usd her that seems overprice.

[Koala]

Hahaha.. you are right homefire! I will try it tomorrow and update the result. Thats the only option i have now. Alu and cu foil doesnt work good for me. Graphite powder cost 35usd her that seems overprice.

Not tried it myself.

What you mix it with also affect the results.

Some things you would think would work don't.

Had success with both yacht vanish and PVA glue. Epoxy resin and rubber glue failed

[jladre]

Not tried it myself.

What you mix it with also affect the results.

Some things you would think would work don't.

Had success with both yacht vanish and PVA glue. Epoxy resin and rubber glue failed

Im thinking of using varnish or pva glue i want to try also enamel paint.

[soverey]

Use epoxy resin (used for impregnating fiberglass) and add graphite powder (you can get it from art supplies stores , they use it for painting) until it is very thick , but still flows as a liquid. I got good results with this method. And if you manually adjust the earth field elimination circuit width , no more false signals from earth's field. Tried it on surf pi 1.2 which detects earth field if not tuned properly and with poor shielding.

[Koala]

Use epoxy resin (used for impregnating fiberglass) and add graphite powder (you can get it from art supplies stores , they use it for painting) until it is very thick , but still flows as a liquid. I got good results with this method. And if you manually adjust the earth field elimination circuit width , no more false signals from earth's field. Tried it on surf pi 1.2 which detects earth field if not tuned properly and with poor shielding.

i covered two copper foil strips about 6" apart using my epoxy and grafite. When tested with a multi meter it was open circuit.
Same test with PVA was 100 ohms

[soverey]

i covered two copper foil strips about 6" apart using my epoxy and grafite. When tested with a multi meter it was open circuit.
Same test with PVA was 100 ohms

I'm using thin drain wires inside the epoxy and graphite mixture, otherwise resistance is to high.

[kt315]

Does anyone her tried to use charcoal as raw material for coil shield. I found it to be conductive and the cheapest.

http://www.geotech1.com/forums/album.php?albumid=56
interesting. did you see my pics? why not?

[jladre]

http://www.geotech1.com/forums/album.php?albumid=56
interesting. did you see my pics? why not?

Nice kt15!

[kt315]

try find out the aerosol in your site, add graphite powder, thats gives perfect result!

[jladre]

try find out the aerosol in your site, add graphite powder, thats gives perfect result!

Graphite powder for a minimum amout they can sell is about 32-35usd. I think that to much but if i cannot find another option then let it be.

[kt315]

thats very strange for me ((((((
try https://www.ebay.com/sch/i.html?_sac...ctrode&_sop=15

[jladre]

thats very strange for me ((((((
try https://www.ebay.com/sch/i.html?_sac...ctrode&_sop=15

Cannot buy from ebay. My card for paypal transaction is pending.

[kt315]

credit card here. no pp.

https://ru.aliexpress.com/wholesale?...hite+electrode