Analysis of the Surface Protection of a Maritime Object, Case Study

ABSTRACT: In the maintenance of maritime facilities, one of the most common task is painting, that is, applying a protective hard coating to surfaces that are exposed to corrosive action. One of the main goals of painting and corrosion protection is to provide the most economical protection of structures. This paper presents the assessment of damage to the structure from the process of corrosive action, the control measurement of surfaces after the removal of corrosive deposits in order to reach the conclusion that the surface is ready for paint application. The measurements are listed in tables and are used for statistical analysis and the creation of control charts. These measures help to decide the potential process capability and also indicate by how much the tolerance limits exceed the actual distribution limits and whether further improvements are required. The control charts and the QI Macros software were the basic statistical tools used. In summary, the control charts provide the opportunity to take timely action to eliminate the cause of the defect within the process in order to minimise costs instead of remedying the consequences of the defect.

KEYWORDS: Surface Preparation of Maritime Structures, Corrosion Protection Coatings, Painting Quality Control, Statistical Process Control (SPC), Shewhart Control Charts, ISO 8501 / ISO 8502 / ISO 2808 Standards, Roughness and Salt Concentration Monitoring, Coating Thickness Measurement

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Citation note:

Jurjević M., Anić A., Lalić B., Stazić L.: Analysis of the Surface Protection of a Maritime Object, Case Study. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 19, No. 3, doi:10.12716/1001.19.03.37, pp. 1017-1026, 2025

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