Hot Blackening Salt VC FERROUS
- Hot blackening salts for ferrous metals are used in a process known as hot blackening or black oxide coating. This technique involves immersing steel parts in a series of tanks containing heated alkaline solutions, usually at around 285°F to 310°F (140°C to 155°C), to produce a durable, corrosion-resistant black finish. The "VC" in your query might refer to a specific product or grade, but here is a general overview of hot blackening salts and their use for ferrous metals:
