Rust

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(Removing surface rust)
(Bulk notes)
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===Bulk notes===
 
*Phosphoric acid (naval jelly, etc.) reacts with rust (iron oxide), to form iron phosphate (the black stuff that naval jelly leaves behind). Neutralize with: baking soda.
 
*Don't ever use battery acid (sulfuric acid) to remove rust. Very dangerous to work with, and harms metal.
 
*To keep naval jelly wet, soak some fabric in water, and lay it on the naval jelly. Can work on an incline.
 
*Don't sit in one spot too long with a wire wheel -- it will warp the metal from the heat.
 
*The iron phosphate coating that's left behind by rust converter is a fine base for primer.
 
*One recommendation is: after sandblasting, remove some more of the surface metal by sanding with sandpaper. This is done to remove the salt, sand, moisture, etc. from the surface.
 
*Molasses is thought to work, but takes a while. 1 part molasses to 10 parts water.
 
*To remove rust: Comet/Ajax with Scotch-Brites, and then muriatic acid with scotch-brites, and then rinse and wash with Comet/Ajax again to neutralize the acid.
 
*What's "all-metal"? Same as all-metal prep?
 
  
Links to review: http://www.tfhrc.gov/pubrds/novdec98/laboratory.htm , http://www2.sherwin-williams.com/im/cs/cs-spring2003/feature-01.asp .
 
  
 
==Resource dump==
 
==Resource dump==

Revision as of 19:07, 13 July 2007

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