Fragata, F. L. ; AMORIM, C. C. ; Ordine, A. P. ; MARROIG, M. C. ; MOTA, R. O. ; MARGARIT-MATTOS, I. C. P. .
Resumo: Surface cleaning tools made of copper alloys are widely employed when sparks have to be avoided. On the other hand, copper residues may be left on the surface. It is not known whether such copper incrustation interferes with the performance of a painting system. Therefore, the aim of this paper is to evaluate the effect of steel surface treatment with copper-containing tools on the performance of a painting system. Painted samples pretreated with ferrous and copper-containing tools were submitted to corrosion tests. The performance was monitored by visual inspection and electrochemical impedance. The surfaces of unpainted samples were analyzed by energy dispersion spectroscopy (EDS) and the open circuit potentials were measured. It is shown that the residues left on the metallic surface due to the mechanical action of the cleaning tools did not interfere significantly with the performance of the painting system.
