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Effects of Blasting Methods on the Performance of Organic Coatings

Effects of Blasting Methods on the Performance of Organic Coatings
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The effects of three blasting methods utilised for surface preparation upon the behavior of five organic coating systems are investigated. The blasting methods include dry blast cleaning, UHP and UHPAB. It is shown that pull-off strength, pull-off failure mode, and delamination are significantly affected by the surface preparation method. 

Product Number: 41206-267-SG
Author: Andreas W. Momber
Publication Date: 2006
Industries: Coatings , Coatings and Linings
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$20.00
$20.00

The effects of three blasting methods utilised for surface preparation upon the behavior of five organic coating systems are investigated. The blasting methods include dry blast cleaning, UHP and UHPAB. It is shown that pull-off strength, pull-off failure mode, and delamination are significantly affected by the surface preparation method. A rather complex relationship between substrate properties, namely roughness, visual cleanliness and grit contamination, and coating performance exists. Certain coating systems are sensitive to grit contamination, and these coatings show very bad performance if applied over dry blast cleaned steel substrates if no fine cleaning was performed.

The effects of three blasting methods utilised for surface preparation upon the behavior of five organic coating systems are investigated. The blasting methods include dry blast cleaning, UHP and UHPAB. It is shown that pull-off strength, pull-off failure mode, and delamination are significantly affected by the surface preparation method. A rather complex relationship between substrate properties, namely roughness, visual cleanliness and grit contamination, and coating performance exists. Certain coating systems are sensitive to grit contamination, and these coatings show very bad performance if applied over dry blast cleaned steel substrates if no fine cleaning was performed.

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