[TheForge] Stainless contamination

[Bruce Freeman]

Well, this is the difficulty.  There are lots of alloys called "stainless steel".  Presumably, some are better than others at resisting rusting, even without passivation.

Bruce
NJ

>>> Pwwhitley at aol.com 8/23/2005 10:05:51 PM >>>
Bruce...I have to contradict you.  I have several stainless pieces  
(sculptures) that have never been chemically passivated and have been outside  for 
years with no rust.  The only treatment was to grind or sand the  surface exposing 
new metal and keeping it exposed to air.  Uncontaminated  SS (no iron 
particles on surface) will not rust as long as oxygen is  present.  
 
A plastic covering, if left in place where moisture can get under it, might  
actually cause rust by depriving the metal of the oxygen needed to maintain 
its  oxide protection.  
 
Philip
SC
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