Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Feb 10;15(4):1310.
doi: 10.3390/ma15041310.

Quality Evaluation of Selected Organic Coatings Used on Roofing Sheets

Krzysztof Przystupa  1
Affiliations

Quality Evaluation of Selected Organic Coatings Used on Roofing Sheets

Krzysztof Przystupa. Materials (Basel). .

Abstract

This paper discusses the aspects of quality evaluation of organic coatings on roofing sheet surfaces. Scratch resistance was defined as a quality property of an industrial product. The research was comparative and exploratory in terms of the method applied and research results. The study followed a quantitative and qualitative approach in which evaluation is based on several parameters, such as the mechanical behavior of a coating in a scratch test, profile and depth of remained damage, and microscopic evaluation of damage mechanisms. The study parametrically describes coating damage and destruction mechanisms. It has been shown that the resistance of the coatings is not identical, and the research results confirm that the applied approach is relevant to evaluate qualitative features of roofing sheet metal coatings.

Keywords: organic coatings; quality; roofing sheet metal; scratch test σ.

PubMed Disclaimer

Conflict of interest statement

The author declares no conflict of interest.

Figures

Figure 1
Figure 1
Average Fn vs. Pd from the indentation hardness tests.
Figure 2
Figure 2
Selected profilogram of the coating surfaces of the “black” (a) and “white” (b) coatings. Coatings surface topography and selected profilograms from the X and Y directions of the coordinate system axis (marked with lines on the colored topographic chart).
Figure 2
Figure 2
Selected profilogram of the coating surfaces of the “black” (a) and “white” (b) coatings. Coatings surface topography and selected profilograms from the X and Y directions of the coordinate system axis (marked with lines on the colored topographic chart).
Figure 3
Figure 3
Average permanent crack depth (Rd) in the roof sheet coatings.
Figure 4
Figure 4
Average indenter penetration depth (Pd) in the roof sheet coatings.
Figure 5
Figure 5
Average friction coefficient (µ) courses in the scratch test.
Figure 6
Figure 6
Optical microscope image of the scratched “black” protective coating (Olympus, objective, with 20× magnification, aperture of 0.4).
Figure 7
Figure 7
Optical microscope image of the scratched “white” protective coating (Olympus, objective, with 20× magnification, aperture of 0.4).
Figure 8
Figure 8
SEM images of the investigated coatings: (a) cross-section of the “white” coating (1000×); (b) cross-section of the “black” coating (1000×); (c) cross-section of the “white” coating (10,000×).
Figure 8
Figure 8
SEM images of the investigated coatings: (a) cross-section of the “white” coating (1000×); (b) cross-section of the “black” coating (1000×); (c) cross-section of the “white” coating (10,000×).
See this image and copyright information in PMC

References

    1. Kiliński A. Jakość. Wydawnictwa Naukowo-Techniczne; Warszawa, Poland: 1979.
    1. Kiliński A. Przemysłowe Procesy Realizacji: Podstawy Teorii. Wydawnictwa Naukowo-Techniczne; Warszawa, Poland: 1976.
    1. Przystupa K. The methods analysis of hazards and product defects in food processing. Czech J. Food Sci. 2019;37:44–50. doi: 10.17221/44/2018-CJFS. - DOI
    1. Kozieł J., Przystupa K. Using the FTA method to analyze the quality of an uninterruptible power supply unitreparation UPS. Prz. Elektrotech. 2019;95:37–40. doi: 10.15199/48.2019.01.20. - DOI
    1. Moczarski M. Ocenianie jakości projektów rozwiązań konstrukcyjnych, technologicznych i organizacyjnych w dziedzinie obsługiwania pojazdów szynowych. Probl. Kolejnictwa. 2010;z. 151:101–115.

LinkOut - more resources