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new - old frame and some corrosion

Old 10-03-06, 03:14 PM
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new - old frame and some corrosion

I have a steel frame on its way to me with some slight rust showing up on the bottom of the frame below the crank and where the calipers fit into the frame. Short of having the frame stripped and repainted whats the best way to get rid of the rust for good? Is there a product/type of paint that could be used to repaint the small paint blemishes? Is there a product that can be used to prevent any rust inside the tubing? Thanks.


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Old 10-03-06, 05:37 PM
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Phosphoric acid metal treatment. Goes under various names. Marine application is called Osphocote, theres a brand you can get at body shops,but the name escapes me.

You can use it directly on surface rust, but check paint compatability in an inconspicuous spot first. Pick at the loose rust with a sharp object first, then apply.

Its water thin, so you can use it to flush the insides of all the tubes to rust-proof the bike. Be sure to drill a big hole (app 1/4 inch) in the bottom bracket to act as a drain for the frame.
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