Accelerated Corrosion Tests in Quality Labels for Powder Coatings on Galvanized Steel—Comparison of Requirements and Experimental Evaluation

Powder coatings are widely applied for corrosion protection of steel, aluminum, and hot dip galvanized steel in a variety of corrosive environments. Powder coatings are subjected to a number of strict laboratory tests to determine their mechanical properties, corrosion resistance, and color stabilit...

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Autores principales:	Izabela Kunce, Agnieszka Królikowska, Leszek Komorowski
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	powder coatings organic coatings corrosion tests quality requirements powder paints Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/3b27e37dcd2044e6ada16c4fbd34d6c5
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spelling	oai:doaj.org-article:3b27e37dcd2044e6ada16c4fbd34d6c52021-11-11T18:06:24ZAccelerated Corrosion Tests in Quality Labels for Powder Coatings on Galvanized Steel—Comparison of Requirements and Experimental Evaluation10.3390/ma142165471996-1944https://doaj.org/article/3b27e37dcd2044e6ada16c4fbd34d6c52021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6547https://doaj.org/toc/1996-1944Powder coatings are widely applied for corrosion protection of steel, aluminum, and hot dip galvanized steel in a variety of corrosive environments. Powder coatings are subjected to a number of strict laboratory tests to determine their mechanical properties, corrosion resistance, and color stability. Among European quality certificates for powder coatings applied to galvanized steel, the most commonly recognized are GSB-ST and Qualisteelcoat certificates, which also refer to the EN 13438 standard. Certificates of quality for powder coatings are constantly updated according to the latest research results and experience of specialists operating in the field of corrosion protection. This paper presents an experimental evaluation of how the required length of selected accelerated corrosion tests can affect the final assessment of powder coatings. On the example of two powder painting systems: polyester as well as based on epoxy and polyester resins, the paper presents the influence of the time of accelerated corrosion tests: ISO 6270, ISO 9227 (Neutral Salt Spray and Acetic Acid Salt Spray), and ISO 3231 on the protective properties of the coatings. The results of damage assessment according to ISO 4628 have been correlated with the requirements of particular quality specifications. Additionally, based on FTIR (Fourier Transform Infrared Spectroscopy) and EIS (Electrochemical Impedance Spectroscopy) analyses, the influence of the applied corrosion tests on the degradation degree of the coatings studied has been presented. The paper aims to present a tests for those powder coating systems applied to facilities for which the main requirement is corrosion resistance rather than aesthetics.Izabela KunceAgnieszka KrólikowskaLeszek KomorowskiMDPI AGarticlepowder coatingsorganic coatingscorrosion testsquality requirementspowder paintsTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6547, p 6547 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	powder coatings organic coatings corrosion tests quality requirements powder paints Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	powder coatings organic coatings corrosion tests quality requirements powder paints Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Izabela Kunce Agnieszka Królikowska Leszek Komorowski Accelerated Corrosion Tests in Quality Labels for Powder Coatings on Galvanized Steel—Comparison of Requirements and Experimental Evaluation
description	Powder coatings are widely applied for corrosion protection of steel, aluminum, and hot dip galvanized steel in a variety of corrosive environments. Powder coatings are subjected to a number of strict laboratory tests to determine their mechanical properties, corrosion resistance, and color stability. Among European quality certificates for powder coatings applied to galvanized steel, the most commonly recognized are GSB-ST and Qualisteelcoat certificates, which also refer to the EN 13438 standard. Certificates of quality for powder coatings are constantly updated according to the latest research results and experience of specialists operating in the field of corrosion protection. This paper presents an experimental evaluation of how the required length of selected accelerated corrosion tests can affect the final assessment of powder coatings. On the example of two powder painting systems: polyester as well as based on epoxy and polyester resins, the paper presents the influence of the time of accelerated corrosion tests: ISO 6270, ISO 9227 (Neutral Salt Spray and Acetic Acid Salt Spray), and ISO 3231 on the protective properties of the coatings. The results of damage assessment according to ISO 4628 have been correlated with the requirements of particular quality specifications. Additionally, based on FTIR (Fourier Transform Infrared Spectroscopy) and EIS (Electrochemical Impedance Spectroscopy) analyses, the influence of the applied corrosion tests on the degradation degree of the coatings studied has been presented. The paper aims to present a tests for those powder coating systems applied to facilities for which the main requirement is corrosion resistance rather than aesthetics.
format	article
author	Izabela Kunce Agnieszka Królikowska Leszek Komorowski
author_facet	Izabela Kunce Agnieszka Królikowska Leszek Komorowski
author_sort	Izabela Kunce
title	Accelerated Corrosion Tests in Quality Labels for Powder Coatings on Galvanized Steel—Comparison of Requirements and Experimental Evaluation
title_short	Accelerated Corrosion Tests in Quality Labels for Powder Coatings on Galvanized Steel—Comparison of Requirements and Experimental Evaluation
title_full	Accelerated Corrosion Tests in Quality Labels for Powder Coatings on Galvanized Steel—Comparison of Requirements and Experimental Evaluation
title_fullStr	Accelerated Corrosion Tests in Quality Labels for Powder Coatings on Galvanized Steel—Comparison of Requirements and Experimental Evaluation
title_full_unstemmed	Accelerated Corrosion Tests in Quality Labels for Powder Coatings on Galvanized Steel—Comparison of Requirements and Experimental Evaluation
title_sort	accelerated corrosion tests in quality labels for powder coatings on galvanized steel—comparison of requirements and experimental evaluation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3b27e37dcd2044e6ada16c4fbd34d6c5
work_keys_str_mv	AT izabelakunce acceleratedcorrosiontestsinqualitylabelsforpowdercoatingsongalvanizedsteelcomparisonofrequirementsandexperimentalevaluation AT agnieszkakrolikowska acceleratedcorrosiontestsinqualitylabelsforpowdercoatingsongalvanizedsteelcomparisonofrequirementsandexperimentalevaluation AT leszekkomorowski acceleratedcorrosiontestsinqualitylabelsforpowdercoatingsongalvanizedsteelcomparisonofrequirementsandexperimentalevaluation
_version_	1718431936782794752

Accelerated Corrosion Tests in Quality Labels for Powder Coatings on Galvanized Steel—Comparison of Requirements and Experimental Evaluation

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