[DML] Re: Stainless rusting thoughts...

[tobyp@xxxxxxxxxxxx]

Tom - To recap the discussion, the stainless steel that is used for 
the DeLorean body panels will develop a new oxide layer if the panel 
is stripped using chemical or physical means.  The creation of this 
layer of chromium oxide isn't instant, but it's fairly quick ... 
Some of you will recognize chromium oxide as a ceramic.  This is 
what forms on the surfaces of austenitic stainless steels in the 
presence of oxygen.  The only way to prevent this layer from forming 
is to seal the surface off from free oxygen using a primer seal coat 
very quickly after stripping (or etching if using chemicals such as 
nitric acid).  I hope that helps - 

Toby Peterson  VIN 2248 "Winged1"
DeLorean Parts Northwest, LLC
www.delorean-parts.com

--- In dmcnews@xxxxxxxxxxxxxxx, "Tom Porter" <treehouse2000us@xxxx> 
wrote:
> My question is, when a person grinds the top layer off, with a 
> grinder or major sanding, as when a person would do this to paint 
the DeLorean body, does it now loose its rust-proof ability?  So if 
you sanded the stainless to that point, and then decided not to 
paint it, would it then be able to rust, or would it start to 
develop the film again over time? (more of a stainless question than 
DeLorean related, sorry)









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