On Sun, 03 Feb 2008 18:42:14 -0500 Carl Denk wrote: > What about polyurethanes? Many auto finishes are polyurethane and the > hold up very well. Yes, there are excellent polyurethanes, but check specs for UV resistance. They're not resistent by themselves... Even marine polyurethanes have to be repainted after a few years of sun abuse. But they _are_ excellent. John -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist