Filling Pickups (P-90) with wax, good idea?

Question

I would appreciate any comments on how waxing P-90 pickups, to dampen feed back, 
on a Gibson ES-135 might effect the tone of the guitar.
One luthier suggested this when I told him the instrument tends to squeal at band volume.
Has anyone done this with positive results?

Anonymous · Accepted Answer

I've only ever done this to pickups that have become microphonic. Seeing as the pickups just generated endless squealing before potting them, I can't really say there were any negative repercussions to it.

Wax is a pretty neutral material electrically, so it doesn't affect how the pickups work in any way. It simply prevents loose wires from vibrating within the coil.

Mark · Answer

It's a fairly common technique, here's a technical article on the process:

http://www.stewmac.com/freeinfo/Electronics/Pickup_building/a-lindyfralin.html

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Filling Pickups (P-90) with wax, good idea?

2 Answers