Question Regarding Rust
Posted here as I believe you folks have most knowledge about my issue.
I am buying a steel frame bike. Suppose I scratch the frame through the clear coat and paint, in other words down to steel.
I assume bare steel will rust and slowly degrade integrity of the frame.
Now down the line I have frame failure. I imagine manufacturer of bike would not stand behind lifetime frame warranty as it was not a "defect".
I would not expect them to cover this as opposed to a weld failure.
So in the event I do scratch frame do I just cover it with clear nail polish or what?
Frame is "Cro moly" if that matters. Made by Kona.
Sure, nail polish or something could help.
A scratch getting rusty isn't going to cause a frame to fail though.
Appreciate the reply.
Originally Posted by adarn
I had heard from an auto body tech that once rust starts it will continue to oxidize (like a slow erosive process) hence I assumed eventual failure due to loss of structural integrity.
Unless it's somewhere hidden that's regularly soaked, like a chainstay bridge, it's not a problem.
Over a very long time period (50 years?) this will certainly be the case, but the initial layer of rust pretty much seals the metal beneath unless it's being soaked on a regular basis. Modern steels used for bikes also have pretty high chromium content, so they don't rust all that easily.
In short: don't worry about it, but putting some nail polish on a scratch is a fine way to ease your mind if it makes you feel better.
Originally Posted by drjay9051
Thanks, Walt. I'll sleep well tonight. Salt Lake City? Great skiing but that's another topic.
Originally Posted by Walt
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