Controle de qualidade da pintura industrial na construção naval

Abstract

The shipbuilding industry plays an essential role in global economic activity, being responsible for transporting a large portion of goods and raw materials used in various productive sectors. Even with the emergence of new technologies and innovative materials in ship construction, the use of steel hulls remains predominant due to the excellent mechanical properties of carbon steel and its low construction and repair costs. However, the main disadvantage of this material is its high susceptibility to corrosion, especially in marine environments, which have high levels of dissolved salts, high humidity, and significant temperature variations — factors that accelerate the electrochemical processes leading to steel oxidation. To reduce these damages, extend the service life of hulls, and decrease excessive repair costs, the application of appropriate anticorrosive coating systems is essential. This study aimed to analyze the technical quality of the anticorrosive coating applied to the internal areas of a vessel under construction, through the evaluation of test panels. All procedures described in the painting specification were verified, from surface preparation to final application, and evaluated according to standards and technical bulletins of the coatings used, in order to ensure the quality of the final product.