Master Chemical Corp., headquartered in Ohio, US, has introduced a new semisynthetic metalworking fluid. TRIM SC520 uses an EP-additive package to control built-up edge, and is suitable for multi-metal, multi-operational job shops. SC520 has the wetting and cooling characteristics necessary for high-speed milling and turning operations. It provides sufficient lubricity to do down-the-hole operations in aluminum, cast iron, and most steels, including many stainless steels. SC520 controls chip welding on soft, gummy materials like aluminum. SC520 will reject tramp oils rapidly which will help provide good sump life in stand-alone machine tools. SC520 has low-to-moderate foam with normal low-pressure flood type coolant operations. SC520 is easily recycled or disposed of using conventional techniques and equipment.