Tag Archives: wipes

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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Brush Wipe Procedure

Posted on 15. Mar, 2009 by .

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Brush Wipe Procedure This method was developed by Todd Pacific Shipyard. These photos are courtesy of Todd Pacific.  Sweep the surface with a Cloth wrapped around a brush  Standard cloth and standard brush.  Wrap cloth around a paint brush. Swipe the cloth across the surface.  Define the amount of pressure • Brush as if painting a […]

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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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Example of Moderate Flash Rust Swatch

Posted on 15. Mar, 2009 by .

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Example of Moderate Flash Rust Swatch:

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Swatch Wipe

Posted on 15. Mar, 2009 by .

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Swatch Wipe NACE Level 3 CIP Barry McCoy from Surface Technologies Corp. contributed this “Swatch” test as it is consistent from project-to-project and easily taught.  Make a “swatch” or wad of the dry cloth. Tape the tail to make a handle.  Lightly wipe the swatch once over the surface.  This path was about 3 inches […]

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Summary of Hand Wipe

Posted on 15. Mar, 2009 by .

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Summary- Hand Wipe  Advantage of holding cloth in hand and wiping. It is easy.  Disadvantage – it is difficult to maintain an even pressure and keep the cloth on the surface.

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Hand Wipe of Heavy Flash Rust

Posted on 15. Mar, 2009 by .

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Examples of hand wipes over heavy flash rust.     Note the formation of the dark, black rust under the light brown rust. There is a lot loose rust obscuring the surface, but no rust scale has formed.   These colors are easily transferred to the hand wipes.

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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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