Shellac And Lacquer Are Both Fairly Easy To Identify Because They Will Redissolve In Their Original Solvents

Shellac and lacquer are both fairly easy to identify because they will redissolve in their original solvents

Shellac and lacquer are both fairly easy to identify because they will redissolve in their original solvents. If alcohol (solvent alcohol from the hardware store, Xem tranh gỗ treo tường not rubbing alcohol) dissolves it then it's shellac. If lacquer thinner softens it, then it's lacquer. (lacquer thinner will also dissolve shellac, but alcohol will not immediately soften lacquer, so do the alcohol check first.) If neither alcohol nor lacquer thinner immediately affect it, then it's probably varnish.

* website can you tell if something is cover with lacquer or varnish?