Also keep in mind that there are at least 2 kinds of "the canned stuff". My memory says Sealcoat is dewaxed and a 2 lb. cut. There is also a canned product that has wax in it and is a 3 lb. cut. The stuff with wax in it isn't good for a barrier coat, the wax will prevent other finishes sticking to the shellac. I'm not sure where and why the wax-in stuff is used. I did buy a can of the wax-in stuff and was able to decant to shellac without disturbing the wax layer on the bottom.