SHO-500, a long-lived general-purpose honing fluid, is based on a renewable vegetable formulation that makes sustainable metalworking affordable and practical. It is 100 percent vegetable-based, therefore petroleum-free and without additives such as sulfur, chlorine and fluorine. This product is an ideal solution for honing applications where additives cannot be used, e.g. nuclear and some aerospace parts. SHO-500 joins Sunnen’s two other planet friendly oils, MAN-863 and KG3X, which are listed as BioPreffered™ products by the U.S. Department of Agriculture.