VCFERROUS HT - Hot Blackening Chemicals
- Hot Blackening Chemicals are used in the hot black oxide process, a surface treatment method that provides a black, corrosion-resistant finish on ferrous metals. The black oxide layer is chemically formed by a reaction between the metal and the chemical solution, creating a durable and aesthetically pleasing finish.
* Hot Blackening Chemicals
1. Alkaline Cleaners
Removes grease, oil, and surface contaminants.
Example: Sodium hydroxide-based degreasers.
2. Blackening Salts
Primary chemicals for the black oxide conversion.
Contain sodium hydroxide and oxidizing agents (e.g., sodium nitrite or sodium nitrate).
3. Post-Treatment Sealants
Oils or waxes to enhance corrosion resistance and provide a satin finish.
Examples: Water-displacing oils or emulsions.
4. Deoxidizers/Conditioners
Optional step to remove light rust or oxides before blackening.
Typically acidic formulations (e.g., phosphoric acid). # VCFERROUS HT - Hot Blackening Chemicals Manufacturer.
