Inner Panel Rust Treatment - Decklid
I figured I should go back and update this. I decided to give a citric acid bath a shot and it worked to perfection. I built a frame with some scrap lumber, lined it with several layers of plastic and made a pretty dilute citric acid solution mixed at 30:1 by weight water to citric acid. It took two days, but completely eliminated all hidden rust. Here are the results:
Before:
During:
After:
I'll be using this method again for sure. Here's the acid I bought. A 10lb bag was about $36 and is enough to make 36 gallons at the 30:1 ratio I used.
I figured I should go back and update this. I decided to give a citric acid bath a shot and it worked to perfection. I built a frame with some scrap lumber, lined it with several layers of plastic and made a pretty dilute citric acid solution mixed at 30:1 by weight water to citric acid. It took two days, but completely eliminated all hidden rust. Here are the results:
Before:
During:
After:
I'll be using this method again for sure. Here's the acid I bought. A 10lb bag was about $36 and is enough to make 36 gallons at the 30:1 ratio I used.