Tag Archives: waterjet

Why is steel dull gray after Waterjetting? What does the profile look like under rust?

Posted on 31. Jul, 2017 by .

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This is a monograph on why steel looks dull  gray after waterjet cleaning.  What does the profile look like under rust? The simple answer is that abrasives leave debris behind which reflects back the light; abrasives plow the surface and create plateaus. Water jet cleaning (Hydroblasting) removes the debris and doesn’t form flat surfaces. Grey […]

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Quality of Water to Protect High Pressure Pumps and for Surface Preparation of Coatings

Posted on 29. Oct, 2015 by .

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For 30 years, I have received questions about the quality of water that should be used for removal of coatings. How much dissolved material or minerals gets left on the surface? Just recently after an hour long webinar to 200 people, the question was “What should the quality of the water be?” Among the first […]

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Pipeline Integrity Congress – ReCap

Posted on 30. Nov, 2014 by .

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The attendees and speakers at the Pipeline Integrity Congress covered all aspects of crude pipeline transport.  There was a mix of academics, operators, and contractors- or suppliers, each of us with a different viewpoint.  As typical of a conference organized by European managers, there was time to hear a talk, discuss it, then have a […]

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The Only Pipeline Integrity Congress Focused Specifically on Crude Comes To Houston 19-20 Nov 2014

Posted on 28. Oct, 2014 by .

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  This year’s inaugural Crude Pipeline Asset Integrity Congress is the only event designed specifically for crude oil pipelines. With the continual emergence of new shale plays across the US, crude production has continued to soar and crude takeaway capacity with it. Tens of thousands of miles of crude pipelines now traverse the United States […]

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TEST PROTOCOL for CORROSION INHIBITORS OR SALT CLEANERS for FLASH RUST

Posted on 10. May, 2011 by .

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This is a Test Protocol for Corrosion Inhibitors or Cleaners for Flash Rust. Prepared by Lydia Frenzel from a specific Proprietary Inhibitor and Cleaner manufacturer’s sheet. Most of the manufacturers have letters or tests results from specific coatings manufacturers. If you contact me, I will send you the link to the source material. OBJECTIVE: This […]

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Example of Heavy Flash Rust Swatch

Posted on 15. Mar, 2009 by .

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Example of Moderate Flash Rust Swatch:  Easy to prepare the swatches.  Keeps a constant light pressure.  Gives a clear distinction between light, moderate, and heavy.  The color transfers to only the cloth that is in contact with the surface. It can be difficult to interpret the various spots of color.

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Wipe or Sweep with Cloth Held in Hand

Posted on 15. Mar, 2009 by .

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Wipe or Sweep with a Cloth held in a hand  Make a bundle of cloth in your hand.  Swipe the dry cloth across the surface.  Make one swipe, up or down or sideways with the cloth touching the surface.  Try to avoid pressing the fingers against the surface. The following four pictures are examples of […]

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