Quote:
Originally Posted by Capt Kangeroo
If your stainless does not have enough Chromium to provide a protective oxide layer rust may appear quicker. In this case you may need to coat your Stainless after removing the rust and surface iron with Spotless Stainless Rust Remover.
This seems to suggest that if you have an inferior grade of stainless the key to controlling rust is to "prevent" oxygen from reaching it ie: the exact opposite treatment given to a higher grade stainless.
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No, they are saying to coat the rusty spot with the magic sauce that dissolves and removes the Fe that causes the rust. Doing so allows a new layer of Cr2O3 to form and reduce the chance of further rusting. It "passivates" the surface.