Graphite shield for coil of gold oriented PI

[softsx]

I have printed spiral coil and don't know what kind of shield is better for this case.
I think, cooper or aluminium foil will be increase decay (spiral takes very large surface), but graphite isn't enough shield...

What opinion on this question?

[Valchev]

Commercial manufacturers use peint with а low conductivity.

[Unregistered]

Commercial manufacturers use peint with а low conductivity.

Whether there are some bugs of applying low conductivity paint for PI?

[Valchev]

Excuse me, of course classical PI do not need a shield, but for a shield can use conductive paint.