violin varnish

ada

Concerning the waterglass: I have an additional adverse report: Yuk.
I know of no difinitive book on varnish, but there are several publications containing useful information.... Time is too short today for me to list titles, but I'm sure others might... If not, I'll try and respond later on...

Really, your best bet may be to ask a maker who has varnish you like to give you some pointers.