This type of plastic is found in the bed of trucks, and now you can find it on your product! Just as it protects the integrity of the truck it can protect and enhance your product. Polyurethane is a two part plastic material that we spray at 200 degrees on all our product that is sculpted. We rely on this coating to seal and protect the sculptors from weather, impact, and time. LSC loves using this coating for our product! We know you will, too.