Hi, Steve. The items are encased in epoxy or polyester resin. If you have a store in your area that specializes in fiberglass supplies, they should be able to help you on this. The resin is also available via mail order from some woodworking supply houses. Another source is From Eastpointe Fiberglass and their web site is members.aol.com/epfiber/page/index.htm. Be advised that the material is expensive. Be sure to follow all the recommended safety precautions when working with it.