The use of impregnation with aluminum improves the appearance, as in this case on the metal-based rust does not appear for 19 years. A thin layer of thermal spraying of aluminum is more effective, it has less tendency to form bubbles, and therefore has a longer service life, in those cases when after using aluminum coating having physical damage such as scratches, corrosion does not progress, it means that is provided by sacrificial protection. Types of coatings, which are listed in table number 2, provide full protection of steel panels of mild steel. The average length of life of the coating average length of service of metal structures and maintain their aesthetic appearance depends largely on the surface preparation and coating performance, which will be in contact directly with the steel. In this regard, zinc and aluminum play a fundamental role, not only because of their ability to withstand corrosive environment, but also through the active protective effects they have on the steel.
These materials are easy to use, they are deposited on steel products after treatment with blasting for surface preparation. The cost of this process is comparable to the value of a good application of paint, but when you consider that the difference in lifespan is 25-30 years old, then it is clear that in the application of this method, you save money (the data are based on British Standard 5493). The method of metallization by sputtering wire sprayed coating allows different thicknesses on large sections of articles. Period thermally sprayed coating services against organic. Deposition of metal – 25 years of single-layer coating – Double layer coating for 15 years – 10 years of varnish – 5 years Where in metal cover? Method of coating metals has been used for more than 50 years for the deposition of bridges, chimneys and parts for over 20 years for the deposition of coastal structures.