Tag Archives: pressure washing

Evaluation, Repair and Rehabilitation of Pipelines

Posted on 23. Jun, 2011 by .

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Evaluation, Repair and Rehabilitation of Pipelines Conference and Exhibition October 31-November 3, 2011 Houston Marriott West Loop, Houston, Texas, USA  Call for paper (http://www.clarion.org/ERRP/ERRP-2011/index.php) Papers are now invited for this international forum which will address key issues in oil and gas pipeline-rehabilitation.  The conference program will be divided into the following broad areas of interest: [...]

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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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Summary of Major Points

Summary of Major Points

Posted on 16. Mar, 2009 by .

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Summary of Major Points: 1.    Flash Rust is the rust that occurs from the time the waterjetting process starts to the time the water used for the waterjetting process dries. 2.    Control the quantity of Flash Rust by Project Planning           • During Removal Process           • As Water is drying           • Keep the drying time to a minimum. 3. [...]

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Example of Pressure Wash on Moderate Flash Rust

Posted on 16. Mar, 2009 by .

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Example of Pressure Wash on MFR: Below: the substrate is dry- but it is  darker (overall) than the original substrate. This surface is dry within 5 minutes. The standard pictures in VIS-4 do not provide these types of illustrations of pressure-washed surfaces. The upper half is not washed; the lower half has been pressure washed. [...]

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Pressure Washing and Excess Flash Rust

Posted on 16. Mar, 2009 by .

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What Happens if there is too much Flash Rust prior to painting?  Prior to the application of paint, the substrate must meet the procurement specifications.  Typical field remediation includes:  Pressure washing  Broom brushing  Blowing off with pressurized air  Solvent cloth or dry cloth wiping  Vacuum Upon polling contractors, it appears that pressure washing is the [...]

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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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