Maxtop Spark oil is mainly made from highly refined and hydrogen-refined high flash point, narrow fraction and low viscosity oils. As a liquid discharge medium, it plays the role of insulation, ionization elimination, cooling of high-temperature areas and removal of carbon slag in electrical discharge machining. Electrical spark oil of different viscosities and flash points can be generated according to the user’s requirements. High-performance insulating medium oil specially designed for electrical discharge machining machines is refined from deeply refined mineral oil or synthetic oil, with the addition of antioxidants, corrosion inhibitors, etc.