Mobiltherm heat transfer oils series 600 are used in open and closed installations. Following oils are available with us: Mobiltherm 603: Closed Systems (-15º C to 285º C), Open Systems (-15º C7 C to 150º C) Mobiltherm 605: Closed Systems (-12º C to 315º C), Open Systems (-12º C to 180º … [Read more...] about Mobiltherm heat transfer oils series 600