plating, anodizing, & finishing Q&As since 1989
Rust treatment for historic cast iron on stained glass window
I am currently invovled in the restoration of a historic stained class window. All of the cross members are decoratively painted cast iron. I am looking for a method that will remove/neutralize the rust in place. I do not think blasting is an option. I would appreciate any help anyone can give. I have researched products like Loctite's rust converter [adv: item on
but I am looking for something that can complete neutralize the rust and then be painted over.
Remove rust with citric acid [adv: item on eBay & Amazon] 5%(or with 5% ammonium citrate solution,pH 3,5),then you can treat it with 20 gm tannic acid [adv: item on eBay & Amazon]/15 gm phosphoric acid/1 lit water solution.That is simple and cheap do it yourself rust converter [adv: item on eBay & Amazon] .You can try Conservation on Line website too(http://palimpsest.staford.edu),they have very good specialized discussion list.Good luck and hope it helps!Goran Budija
our company has an organic/plant-based rust converter [adv: item on eBay & Amazon] which safely and quickly neutralizes rust and renders the treated surface self-primed for paint. Please call Barry. good luck
Q, A, or Comment on THIS thread -or- Start a NEW Thread