Graphite powder as coil shielding

[Thomas]

Shielding isn't as important for PI detectors, some people don't even use shielding for PI.
But.. use as much as you can to get close to saturation, with out making it paste, it should flow smooth.
If the paint is water based add a little water to thin, if oil base enamel use mineral spirits to thin.

[sdesic]

Any advice on amount of graphite ?
I have 50g.
Paint will be fine as it is sticky enough.

I can also use it to shield plastic box for detector.
I must find Don's document on shielding. I have on on fast coils for PI.

[Thomas]

Yes, that graphite will work fine, I would make a mix of the graphite and or paint, epoxy, alcohol, naphthalene, kerosene,
what ever you can get for a carrier as long as it won't damage the wire insulation and brush it on, embed a piece of copper in it
for a tab to connect a wire to, also don't forget the gap between the two halves of the coil. Don (dfbowers) did a PDF on the subject.

[sdesic]

Hi guys

I had trouble finding graphite in spray.
Can I use this one ?

https://www.masters.com.au/product/901880467/pressol-50gm-graphite-powder-10589.jsp;jsessionid=baq6VehEEk+8gM4LqytYmg__.ncdlmorasp1203?bmUID=kqlNDP_

it is Graphite powder ... I was thinking of spraying paint and then applying coating of powder.

Thoughts ?