Re: [Paddlewise] Rusting Knives

Greg,





I wish there was an easy fix but unfortunately there isn't. The best that I
could recommend is that you remove as much of the rust as possible. Try Naval
Jelly or just wire brushing. The problem is that if the rust was extensive,
the metal surface will be pitted. Each of these pits will set up a corrosion
reaction and continue to rust faster than the smooth stainless steel would.
The only good side, is that it will rust slower than if the rust was still
present. 





The NACE (National Association of Corrosion Engineers) has identified over
2,000 different types of corrosion. One of them is referred to as underdeposit
corrosion. That is what will occur if the rust is left in place. The high
chloride levels of the salt water will only cause intergranular stress cracks
between the grains of the metal structure.





Best bet is to prevent the rust as much as possible in the first place.





Steve


  ----- Original Message ----- 


  From: Greg Hollingsworth 


  To: Steve Holtzman 


  Cc: PaddleWise_at_lists.intelenet.net 


  Sent: Wednesday, October 20, 1999 6:43 PM


  Subject: Re: [Paddlewise] Rusting Knives








  How about a few suggestions on how to fix a rust covered knife?  I'm almost



  certain that mine's beyond hope.





      Greg








  Steve Holtzman wrote:





  > For those of you noticing that your stainless steel knives are rusting, no

  > metal will be completely free of rust. Some just rust less quickly than


  > others.


  >


  > Also, if you are using it in and around salt water, it is extremely


  > important to rinse it in fresh water. All stainless steels are corroded by

  > high levels of chlorides. The levels in sea water are extremely high - on



  > the order of 10,000 parts per million or 1 %. This will do in your
stainless


  > steel knife very quickly. Just rinse it and dry it and you should be ok.


  >


  > Steve Holtzman


  >


  >
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