Oxidation, or Blackodizing, is an application that increases the corrosion resistance of the material. Before this product group operating at high temperatures, the metal must be degreased. A dark black image will appear on the coated metal and the process should be continued with protective oil. It is the process of forming an oxide film with lubricating properties on the mold surface in metal injection applications where oxidation adhesion and related adhesive wear are experienced. The 2-5 µm thick iron oxide film formed on the surface after the process forms a barrier between the mold and the molten metal, preventing adhesion due to the formation of mechanical and intermetallic phases. Oxidation is essential before first use, especially in molds with complex shapes where cooling may be insufficient or where lubricant and coolant spray are difficult to reach.