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Assessment of the quality of ecological high-solid paints with low solvent content

The paper presents the results of the research aimed at evaluating the quality of coatings based on ecological high solids paints with low content of solvents compared with classical synthetic paints. The quality of the selected coatings was evaluated by determining the adhesion of the coatings depending on the surface pretreatments used. The aim of the work was to determine the effect of pre-treatment on the adhesion of coatings and to evaluate the possibility of using a blasting media - almandine as a secondary raw material in the pre-treatment of steel surfaces. The adhesion of the coatings was determined by a grid test and a peel test. The quality of the pretreated surfaces was evaluated on the basis of changes in electrode potentials indoors and outdoors. Simulated Acid Rain Solution (SARS) was used as the electrolyte. The corrosion resistance of the coatings was evaluated by accelerated laboratory tests in an SO2-containing environment and by total immersion of the samples in a 20% NaCl solution. The environments were deliberately chosen to simulate the urban atmosphere. Following exposure of the test specimens, the change in coating