Zinc-Nickel plating is one of the best corrosion resistant finishes available offering over 5 times the protection of conventional zinc plating and up to 1, 500 hours of Neutral Salt Spray test performance.
12.
Although the majority of salt spray tests are continuous, i . e .; the samples under test are exposed to the continuous generation of salt fog for the entire duration of the test, a few do not require such exposure.
13.
The most common test for steel based materials is the Neutral Salt Spray test ( often abbreviated to NSS ) which reflects the fact that this type of test solution is prepared to a neutral pH of 6.5 to 7.2.
14.
In salt spray test & shy; s zinc flake coatings demonstrate better protection against corrosion than a typical galvanic zinc coating, which in the tests ( generally run in accordance with DIN EN ISO 9227 ) often achieve only 96 to 200 hours.
15.
Preliminary results of salt spray tests ( 24 weeks of exposure ) show changes in tensile strength and elongation of Alclad 17ST, when any occurred, to be so small as to be well within the limits of experimental error . " In applications involving aircraft construction, Alclad has proven to have increased resistance to corrosion at the expense of increased weight when compared to sheet aluminum.
