The oil that Harrisville Designs uses is a special blend of linseed oil and mineral spirits, which can be purchases directly from us (via phone order) in a ¼ pint or ½ pint can. To order the oil, call 603-827-3333. Other weavers have recommended tung oil which can be purchased from your local hardware store. The most important consideration when refinishing your loom is to sand all existing finish off each piece before applying more.