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08005 Cathodic Disbonding of Epoxy Coatings - Effect of Test Parameters

Picture for 08005 Cathodic Disbonding of Epoxy Coatings - Effect of Test Parameters
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Product Number: 51300-08005-SG
ISBN: 08005 2008 CP
Author: Ole Øystein Knudsen, and Jan Ivar Skar
Publication Date: 2008
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$20.00
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A large number of standardized test methods for cathodic disbonding are available. Parameters like voltage, electrolyte composition, temperature, sample configuration etc vary over a wide range between the various tests. A round robin test recently organized by NACE showed that one can expect significant variation in result between test labs, in spite of identically coated samples and test procedures. This paper presents a review of published literature on the effect of various parameters on cathodic disbonding, and results from a study on the effect of oxygen concentration, dry film thickness, applied potential and electrolyte composition on cathodic disbonding. The objective with the paper is to discuss the importance of various test parameters on cathodic disbonding results: Electrolyte composition, presence of hypochlorite in the electrolyte, applied potential, dry film thickness, and oxygen concentration in the electrolyte.
A large number of standardized test methods for cathodic disbonding are available. Parameters like voltage, electrolyte composition, temperature, sample configuration etc vary over a wide range between the various tests. A round robin test recently organized by NACE showed that one can expect significant variation in result between test labs, in spite of identically coated samples and test procedures. This paper presents a review of published literature on the effect of various parameters on cathodic disbonding, and results from a study on the effect of oxygen concentration, dry film thickness, applied potential and electrolyte composition on cathodic disbonding. The objective with the paper is to discuss the importance of various test parameters on cathodic disbonding results: Electrolyte composition, presence of hypochlorite in the electrolyte, applied potential, dry film thickness, and oxygen concentration in the electrolyte.
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10007 Test Method for Studying Cathodic Disbonding at High Temperature

Product Number: 51300-10007-SG
ISBN: 10007 2010 CP
Author: Ole Oystein Knudsen, Tor Gunnar Eggen and Kristian Karlsen Brende
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Picture for Cathodic disbondment test: What are we testing?
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51312-01285-Cathodic disbondment test: What are we testing?

Product Number: 51312-01285-SG
ISBN: 01285 2012 CP
Author: Markus Betz
Publication Date: 2012
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The cathodic disbondment (CD) test is a well known and generally accepted laboratory test for pipeline coatings for a long time. What are we testing and what is the significance of the test? By means of basic investigations factors influencing cathodic delamination have been identified and their extent on the delamination radius has been assessed.
Picture for Advancement in Cathodic Disbondment Test Standard- NACE TM0115
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51318-11018-Advancement in Cathodic Disbondment Test Standard- NACE TM0115

Product Number: 51318-11018-SG
Author: Benjamin T. A. Chang / Dennis Wong
Publication Date: 2018
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Special enhancements: (1) use the high temperature reference electrode - Ag/AgCl; (2) define the test temperature measurement procedure; (3) check the accuracy of the reference electrode; (4) develop an inexpensive anode isolation method.
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