Industrial blackening solutions * Application Process _ Surface Preparation: 1. Clean the metal surface thoroughly to remove oils, grease, and contaminants. 2. Degrease the parts using a suitable solvent or cleaning solution. 3. Rinse the parts with water to remove any cleaning residues. _Blackening Process: 1. Immerse the metal parts in the blackening solution or apply the solution using a brush, spray, or dip method. 2. Allow the parts to remain in contact with the solution for the specified time to achieve the desired black oxide layer thickness. 3. Rinse the parts with water to remove excess blackening solution. _ Post-Treatment: 1. Seal the blackened surface with oil, wax, or another protective coating to enhance corrosion resistance and provide a smooth finish. 2. Dry the parts thoroughly before further handling or assembly.