Originally Posted by
Nessism
Oxalic acid seems to be in fashion on many of the bicycle boards but Evapo Rust is a far superior product for removing rust without risk to the existing paint. Harbor Freight sells Evapo Rust for about $20 per gallon and it has no dwell time restrictions like Oxalic acid does.
Like Oxalic acid though, I'd have to find a way to soak effected region of my frame - and I'm not really sure how to do it, logistically. Any ideas how I might treat just a few small areas on my top tube, for example?