
plating, anodizing, & finishing Q&As since 1989
-----
How to remove rust but not paint?
2002
I want to remove the rust from a part made of mild steel which is only partially rusted. I do not want to remove the paint from that part of the surface which is not rusted. I will not mind if it gets removed partially. How should I do it? Can I try applying 10% nitric acid solution by brush on the rusted surface? Or shall I try applying phosphoric acid? Currently the only way I know is to remove mechanically, i.e., by scrubbing by emery paper/ sander. Parag P Khedkar
Parag P Khedkar- Nashik, Maharashtra, India
2002
The phosphoric acid sounds like a much better idea than the nitric acid.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q, A, or Comment on THIS thread -or- Start a NEW Thread