Corrosion testing of coatings and surfaces with the salt spray test

Salt spray test
© Fraunhofer IST, K. Schiffmann
At the Fraunhofer IST, we use the salt spray test to test the corrosion resistance of materials.

Salt spray test in accordance with DIN 9227

With the help of a salt spray test in accordance with DIN EN ISO 9227, the corrosion resistance of a material or a corrosion-protection coating thereon can be determined in principle. Typical test times range from 96 h to 1000 h. The corrosion resistance of a steel product provided with corrosion protection is derived from the test time that a test specimen can withstand in the test without red rust becoming visible in the base material. Salt spray tests are well suited for comparing materials and corrosion-protection systems with one another.