Any secret to flattening out a warped pickguard? Got one from the 70's that was glued to wood then finished over with laquer, then the edges curled down and it peeled right off.
I'm guessing it's celluloid, so I'm hesitant to use any real heat on it.
I tried soaking it in very hot water, not boiling, but no dice.
ideas? what's worked for you?