Mid Temperature, 220–255° F
Hot blackening is a mid-temperature black oxide process designed for industrial metal coatings and metal surface treatments. Operating at 225–255°F, these solutions convert steel surfaces into black iron oxide (magnetite), resulting in a glossy, durable finish that offers rust prevention and enhanced part protection.
Mid-temperature blackening processes provide several advantages:
Dimensional Stability: Maintains the precision of metal parts without altering critical dimensions.
Smut-Free Finishes: Achieves clean, high-quality results ideal for demanding industrial applications.
Energy Efficiency and Safety: Operates at lower temperatures to minimize energy consumption and reduce safety risks associated with boiling processes or caustic fumes.
Hot blackening solutions, such as Kool-Blak 225, meet stringent industry standards, including MIL-DTS 13924D Class 1 and AMS 2485L, making them suitable for applications across automotive, aerospace, and other industrial metalworking sectors. These processes are a cornerstone of advanced metal plating and coating solutions, delivering reliable corrosion resistance and superior surface finishes. This is the same finish as traditional black oxide.
