To determine the resistance of the coatings of Zn / Al and Al have been performed numerous tests in salt mist with the presence of NaCl 5% the temperature of 35 ° C + 2 °C. The loss of thickness of coatings detected after 168 hours of exposure showed the results shown in Figure 14.
|By extending the results found, we can deduce a rule of thumb:|
|Loss in thickness after 168h|
|Thickness loss||Resistance in h||Thickness loss||Resistance in h|