a thick shellac finish is supposed to do that alligator skin thing but how thick does it have to be before it will happen? how long does it take for it to happen? tried searching but haven't been able to get anything substantial. thick is a relative term when not defined, which is how it is often found when search info about shellac. no real definite answer on the time line either, most reference antiques showing the alligator/cracking finishes.