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Removing rust from inside a bicycle frame

I need to clean some light rust from the inside of a bicycle frame. I was told that this could be done with a low percentage muriatic acid and water solution and then rinsing. Where can I find details on how to perform this job and what is a low percentage solution (1 part acid to 3 parts water?)

Rob Schlumpberger
- Ballwin, Missouri
2003

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There are hot alkaline rust removers that work well, but cost too much to set up for a quantity of one. Muriatic acid will take out the rust, but it will rust worse after the treatment, even with excessive rinsing. Try to find a non toxic rust remover. Normally this will be a citric acid formulation. Mega safer, but use proper protective equipment; goggles ⇦ on eBay or Amazon [affil link] , rubber gloves ⇦ on eBay or Amazon [affil link] and apron ⇦ on eBay or Amazon [affil link] are an absolute minimum

James Watts
- Navarre, Florida
2003

I have a question in regard to the last comment: will the non toxic rust remover keep the rust away for good if applied properly?

Zach M
- Bountiful, Utah
2005

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Certainly not, Zach.

The reason automobiles have such extensive treatments -- all turned edges, no exposed welds; galvanneal material; phosphatization; multilayer paint; clear coat -- is that all of those steps are mandatory to provide long term rust prevention in exterior use.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
(Ted is available for instant or longterm help)
finishing.com - Pine Beach, New Jersey
January 25, 2013

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