Current Projects chat and miscellany

does anyone have any tips on a good/hard clear coat, enamel or laquer?
I used some car laquer (hycote)and it is absolute crap.Pretty hard stuff after drying but so brittle that it chips off. Also used Plasti Kote clear coat before, much better but that just rubs off over time.

BUMP

• I have the same question as I want to clear coat over the existing paint work to protect it