Rust in frame

[nobby]

What can I do about rust in a frame?
It's an On One Inbred and while removing a bit of chain stay reinforcing plate to get my Bafang motor to fit properly I found rust under the plate. A look in the bottom bracket showed rust at the holes where the tubes join.

If The Bafang is a good match for this frame I will be getting it powder coated in a few months.

[mrcharly-YHT]

framesaver is good.

[toontra]

A bit late now but the first thing I do when building up a steel-frame bike is use some kind of frame-saver on the insides.  Searching here should find several threads on what people recommend.

[cycleman]

A product called waxoil is what I recall being used for rust prevention in frames 

[rafletcher]

Use a rust converter, available from all good motorists emporia, then an internal coating. J. P. Weigles Frame Saver is a good brand if you can get it but Waxoyl or similar - again available at car places - will do.

[nobby]

Thanks all.

[Pedaldog.]

Is it worth, on a New Bike, doing the Waxoyl treatment? I don't know if Pinnacle (Evans own brand) are treated when built up.

[Moleman76]

Pre-build is the easiest time to treat the frame.  No bits attached yet, easiest to put the nozzle / spray tube into the vent holes near dropouts, easiest to verify that you have good coverage, etc.

[rogerzilla]

Bilt-Hamber Dynax S50 comes in a massive aerosol with a long flexible probe.  Easier to use than Waxoyl.

[toontra]

Bilt-Hamber Dynax S50 comes in a massive aerosol with a long flexible probe.  Easier to use than Waxoyl.

That's what I use.  Fantastic stuff - done 6 frames so far and still half the can left. The tube doesn't seem to get blocked if unused for a few years either.

A work of warning.  The last treated frame I took to Armourtex left them spluttering in the workshop.  When it was heated for curing it gave off some unpleasant fumes, apparently!