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Atmospheric Plasma: One-Step Precision Process To Remove Coating And Promote Chemical Adhesion

Atmospheric Plasma: One-Step Precision Process to Remove Coating and Promote Chemical Adhesion
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This paper details a precision process for removal of coatings and preparation of the metal surface underneath for optimal chemical adhesion without damaging the metal surface or the surface profile. A precision process is required for removal of coatings around corroded surfaces, potentially defective structures, or thin-walled ligaments where abrasive removal procedures will damage the substrate. In these cases, removing metal will worsen or cause a defect where replacement is expensive. A precision tool that can safely remove the coating, allow for inspection, and enhance adhesion for recoating is needed. This type of tool would enhance existing repair technologies and eliminate the immediate need for replacement.

Product Number: 51322-18152-SG
Author: Pietro Ranieri, Levi Snowden, Jason Stimson, Peter Yancey
Publication Date: 2022
Industries: Coatings and Linings , Coatings
$0.00
$20.00
$20.00

Removal of coatings around thin-walled ligaments or potentially defective structures require a precision tool that does not impact the structure leading to failure. The removal of any metal or damage to the surface must be avoided in these scenarios, which disqualifies highly abrasive removal methods such as blast cleaning and water-jetting. Atmospheric plasma coating removal (APCR) is a precision tool that can remove the layers of the original coating and modify the surface properties of the bare metal surface to promote chemical adhesion by increasing surface energy. Presented in this work will be our results on the removal efficiency of the original coating, change in water contact angle (adhesion promotion) before and after plasma treatment, and the increased adhesion strength shown by standard adhesion tests. Multiple metal surfaces and adhesives will be presented that represent the commonly used materials for naval and infrastructure industries. 

Removal of coatings around thin-walled ligaments or potentially defective structures require a precision tool that does not impact the structure leading to failure. The removal of any metal or damage to the surface must be avoided in these scenarios, which disqualifies highly abrasive removal methods such as blast cleaning and water-jetting. Atmospheric plasma coating removal (APCR) is a precision tool that can remove the layers of the original coating and modify the surface properties of the bare metal surface to promote chemical adhesion by increasing surface energy. Presented in this work will be our results on the removal efficiency of the original coating, change in water contact angle (adhesion promotion) before and after plasma treatment, and the increased adhesion strength shown by standard adhesion tests. Multiple metal surfaces and adhesives will be presented that represent the commonly used materials for naval and infrastructure industries. 

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Product Number: 51322-18170-SG
Author: Glenn Astolfi, Arthur Wood, Jeffrey Piascik, Peter Yancey, Levi Snowden, Robert Ross
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A vessel docked for maintenance is a vessel out of service. For military forces, this significantly affects the readiness of that force, its ability to respond quickly and appropriately to a developing situation. It is for this reason that the United States Navy continues to search for and invest in innovations that improve maintenance turn-around times as well as innovations that keep vessels in service for longer periods of time. In large-scale construction and manufacturing industries such as shipbuilding and naval maintenance, coating removal is an essential but time-consuming process required for constructing and maintaining vessels and other structures.
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Product Number: 51322-18061-SG
Author: Eric Shoyer, Nick Fabritiis, Pete Ault, Peter McDonagh
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When it comes to a bridge structure with a serviceable Organic Zinc / Epoxy / Urethane (OZ/E/U) coating system, there is no golden answer on the most cost-effective maintenance painting strategy. Depending on the severity and amount of corrosion and coating breakdown on the structure, planned maintenance surface preparations range from spot power tool cleaning and spot painting to a full SSPC-SP 10 media blast and full recoating operation. 
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Bayesian Modeling Coating Performance

Product Number: 51322-17612-SG
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Coating degradation on Army ground systems represents a significant maintenance cost and effort. The objective of this proposed work is to develop a predictive model for coating degradation and subsequent substrate corrosion on Army ground assets. Provided with a better understanding of the root causes, steps can be taken to reduce corrosion impacts on Army materiel.
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