TRIM® MicroSol® 585 is a high-lubricity, semisynthetic, microemulsion coolant. It provides excellent cooling and mechanical lubricity, along with the machine friendly characteristics you expect from a premium TRIM® coolant. While it is particularly well suited for machining and grinding gray iron, it does very well in mixed metal situations. MicroSol 585 has proven to be an exceptional machining fluid for titanium alloys. MicroSol 585 has a Pratt & Whitney approval number (PMC 9362).