Shellac flakes are available at Alysons Chemicals in Quezon , you can buy them by the kilo. However the kind of shellac they sell is not dewaxed. I haven't heard or seen spray shellac though. Google will help you a lot on the difference between dewaxed and waxed shellac as well as 1 pound cut or two pound cut or even the French finish thing. Denatured alcohol is used to melt you shellac flakes.

what's the difference between a shellac and a polyurethane? ano mas okay gamitin for outdoor stairs and bridge steps? thank you!