After reading several posts to this website, I have revisited using Shellac. It is great stuff! I have an old "Karges" dining room table that I inherited from my parents. This table has a beautiful mahogany inlay pattern on the main table top and six leaves. I remember as a child how the surface was like satin. After forty years of exposure the surface looks like a shattered window. The company still exists in Indiana, but they would tell me what was used on the table. I tried a french buff, and it came out real nice, but in a couple of weeks it looked checked again. I tried a oil based urethane, but it left a fogged surface after buffing. I finally cleaned the surface with Acetone to remove any wax buildup, and sanded with 1000 grit with my Rotex to level the surface. I then sprayed a several coats of 2 Ibs. cut Shellac with light sanding between coats (actually, the first coat was 1 Ib. cut Shellac). The test table leaf looks fantastic. I plan to wait a couple of weeks before taking on the whole table.
I really like the ease of using shellac. Very little odor; cleanup is a breeze; and results are impressive. Just need to keep the surface free of alcoholic beverages!
Ray