Painting Process Design and Characterization of Polymer Coatings on Brass

Spraying process is an alternative way to replace Chromium electroplating technique which presents industrial, economic and ecological disadvantages. The investigated work aims to develop non-usual coatings to protect the brass substrate and to ameliorate the faucets performance. Several materials with the viable deposition capability and with the excellent properties have been processed through spraying process, including polymers, thereby creating the fluorinated-ethylene-propylene and the poly-tetra-fluoro-ethylene coatings. The painting process is one of the innovative and the simple spraying techniques with growing scientific interests and industrial applications in the field of faucets. This method offers corrosion protection and results in increases in mechanical and physical durability and wear resistance. Experiments subsequently confirmed the successful deposition of polymer suspensions onto the brass substrate. Based on the results, it was determined that both coatings exhibit a hydrophobic character owing the low values of surface energy obtained and the FEP coating presents the best friction results. This review extensively exploits the latest developments in the experimental analysis of spraying processes. Coating formation, characterization of deposit development, description of process parameter and principles, are summarized.