Quote:
Originally Posted by David70
My company manufacturers stainless tank trailers. If when bending cutting or grinding the material any carbon steel tooling is used the carbon will get into the metal and then rust. I have had customers call me to say their stainless tank is rusting. While a theory I would expect the same could happen to titanium and I wonder if when finishing the end of the exhaust a carbon steel tool was used.
As I have told my customers, go to Lowes and get some Naval Jelly, it comes in a small container, maybe 8 oz. It has nitric acid in it. Go home, wait for exhaust to cool, wipe a small amount on small area on the bottom side, let it sit on there for 15 minutes and wipe it off. I would try this in an area not normally seen as I have no idea if this will discolor titanium. It will take the rust off. If it works continue to other areas.
Once you get rid of the carbon particles it won't come back.
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This. That stuff is magic. It is good for any rusting components.