Like many T 25 owners I have a few patches of seam rash that will need dealing with later this spring. I know the only sure way to stop it is to cut out and replace.
I've used vactan and while the results have been good I was wondering if anyone has used any other product with good results.
Thanks
Phosphoric acid - I use the 40% stuff but you can get higher concentrations which would probably work quicker. It turns the rusty bits black and etches bare metal leaving a good surface for painting.
You have to wash it off with water before you paint, but I usually dry it with a heat gun really quickly afterwards so it doesn't flash rust.
Then epoxy primer over it.