If your orange shellac was not optically clean then the wax has not been removed.
Shellac is an excellent sealer. Don't get carried away with the shellac; you can apply it thick to fill the grain, because you are sanding/scraping most of it away after it dries.
For a seal coat just 1 or 2 light coats; too thick and you will have problems down the road when the shellac wants to alligator (crack).
Last edited by Scott Holmes; 07-12-2011 at 9:51 AM.
Scott
Finishing is an 'Art & a Science'. Actually, it is a process. You must understand the properties and tendencies of the finish you are using. You must know the proper steps and techniques, then you must execute them properly.