Shellac for warangka

[milandro]

I have two sarongs which appear to have been treated with some shellac although was not brought to a true “ piano finish” to begin with.

One had some signs of water having been splashed on it, I got some denatured alcohol and have been just rubbing it.

The remaining shellac on the surface got , I think, slightly soluble again and covered the superficial water spots and are now no longer visible. I am happy the way it looks,

I have to say that although I probably understand the desire of having a shiny surface bringing it to a piano polish would probably not be practical