Thin bushing cloth?

[stanwood]

>> I need to take the wobble out of some old piano keys so I was going to
>> replace the front key bushing cloth.  I ordered the thinest available from
>> IPS (.038" thick).  This appears to be way too thick.  I think I need about
>> 0.019".  Does anyone know of a supplier of such thin bushing cloth? What
>> about using paper or vellum for the key bushing?

Heckscher in UK supplies a very thin 0.9mm bushing cloth,
also good for damper guides.  .038" = 1.0mm

D. Stanwood