Salt spray testing is an accelerated corrosion test that produces a corrosive attack to coated samples in order to evaluate (mostly comparatively) the suitability of the coating for use as a protective finish. The appearance of corrosion products (rust or other oxides) is evaluated after a predetermined period of time.

 

A salt spray test machine is a specialized equipment used to simulate the corrosive effects of salt spray environments on materials, coatings, or electronic components. This test is crucial for evaluating the corrosion resistance of various materials, particularly metals and their alloys, under conditions similar to those found in marine or industrial environments.

Working Principle

salt spray test machine operates by creating a controlled environment within a test chamber. This environment is maintained at a specific temperature and humidity, with a salt solution (usually a 5% sodium chloride solution) being atomized into a fine mist. This mist is then directed onto the test specimen, exposing it to a concentrated salt spray environment. The duration of exposure varies depending on the test requirements, simulating different levels of corrosion