I have been finishing my contemporary classical guitar with Royal Lac shellac from Shellac Finishes. I am really happy with how it is going on. Here is a description I found on line
Royal-Lac is a proprietary formulation formed by cross-linking shellac with carefully selected synthetic resins to form new polyester chains that combine the look and feel of shellac with the durability of synthetic finishes.. Also it can be buffed to a high shine. It comes as a 2 lb cut I have been using it as a 1 lb cut. It really builds nicely and stays level. My method is sort of half FP half padding. I use a proper muneca or fad so I can control how much I am applying but I am using almost all with the grain strokes and no oil. At some point I will level sand and buff it out.
This is after two days, no sanding.
