Comments on: Flash Rust http://flashrust.org/2009/03/03/flash-rust/?utm_source=rss&utm_medium=rss&utm_campaign=flash-rust The real story of what flash rust is and how to cope with it. Mon, 25 Apr 2011 17:25:27 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: lydia frenzel http://flashrust.org/2009/03/03/flash-rust/comment-page-1/#comment-23 lydia frenzel Mon, 25 Apr 2011 17:25:27 +0000 http://flashrust.org/?p=1#comment-23 Hi Jack- You understand that "FLASH RUST" is the oxidation (rust) during surface preparation that occurs as the carbon steel is drying. The classic test for inhibitor is to place the steel surface into immersion of water with the recommended level of inhibitor. Iit is a comparison test. YOu can put it at the temperature that you expect to experience in your field conditions. SSPC has a standard method for producing uncontaminated rusted steel panels. This method , Test Panel Preparation, Method NO. 1, Uncontaminated Rusted Steel, can be used for your comparison, It was used to prepare Grade C rust on panels so that paints could be put on and the performance could be evaluated. In summary- they clean with solvent, dry blast to near white, and place in an ASTM G 85, Annex A.5 cyclic chamber, 1 hour wet and 1 hour dry. I would think that you would get comparison results in 24 hours. The total time is up to you. YOu should be comparing a known panel without any inhibitor to panels with the inhibitor. Hi Jack- You understand that “FLASH RUST” is the oxidation (rust) during surface preparation that occurs as the carbon steel is drying.

The classic test for inhibitor is to place the steel surface into immersion of water with the recommended level of inhibitor. Iit is a comparison test. YOu can put it at the temperature that you expect to experience in your field conditions.

SSPC has a standard method for producing uncontaminated rusted steel panels. This method , Test Panel Preparation, Method NO. 1, Uncontaminated Rusted Steel, can be used for your comparison, It was used to prepare Grade C rust on panels so that paints could be put on and the performance could be evaluated.
In summary- they clean with solvent, dry blast to near white, and place in an ASTM G 85, Annex A.5 cyclic chamber, 1 hour wet and 1 hour dry.

I would think that you would get comparison results in 24 hours.
The total time is up to you. YOu should be comparing a known panel without any inhibitor to panels with the inhibitor.

]]> By: Jack http://flashrust.org/2009/03/03/flash-rust/comment-page-1/#comment-22 Jack Mon, 08 Nov 2010 16:20:26 +0000 http://flashrust.org/?p=1#comment-22 Hello, I am looking for a way to test flash rust inhibitors in a humidity chamber. I have yet to find a standard that covers this topic. I've read many of the ASTM humidity tests and most are for painted surfaces. I am trying to determine what temperature and RH to run a test for 24 hours. Does anyone know of such a standard test? Hello,
I am looking for a way to test flash rust inhibitors in a humidity chamber. I have yet to find a standard that covers this topic. I’ve read many of the ASTM humidity tests and most are for painted surfaces. I am trying to determine what temperature and RH to run a test for 24 hours. Does anyone know of such a standard test?

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