Removing Black Iron Phosphate Coating from Steel Elements

If you find yourself with steel elements that are blackened by a mistakenly applied rust converter containing phosphoric acid, there is a solution to remove the black iron phosphate coating. This coating not only leaves black traces on your fingers, but also has a strong odor.

The solution involves using a diluted phosphoric acid. This chemical will help in removing the black iron phosphate coating from the steel elements.

Instructions:

1. Wear protective gear, including gloves and goggles, before handling the diluted phosphoric acid.

2. Prepare a solution of diluted phosphoric acid following the instructions provided with the acid.

3. Soak the blackened steel elements in the solution for a period of time needed to dissolve the black coating. Make sure to monitor the progress and not leave the elements soaking for too long.

4. After removing the black iron phosphate coating, rinse the steel elements thoroughly with clean water to stop the chemical reaction.

5. Proceed with using a proper rust remover to get rid of any remaining rust on the elements.

6. Once the elements are free from rust, you can proceed with galvanizing them as you initially planned.

Remember to always follow safety precautions when handling chemicals like phosphoric acid. By carefully following the instructions and taking necessary precautions, you can successfully remove the black coating and continue with your rust removal and galvanization process.