I'm sure i've seen it somewhere before- a grease-type substance that can be applied to pots to make them "firmer" to rotate.
Talking about for a guitar here, not the KPA.
It kind of does the opposite job of a lubricant so where my volume knob turns very freely at present an application of this substance makes it slightly tighter to turn.
Maybe someone here knows how to stiffen up my knob. (ok, jokes of the way, insert your pun here)
But seriously, no idea what its called or what to search for.
thanks