mikeyrocks, I just recently heard about a website called Resin Obsession. It is run by a lady from Florida that specializes in resin jewelry. She is the single most knowledgeable person I have found on the subject of resins like epoxy, polyurethane, and polyester. She even has some information all ready to go on her website. I haven't had time to even read all of it, but it sounds good so far, and seems to be leading me in the right direction.