The corrosion resistance classes indicate the resistance of Festo components and products to external influences and ambient conditions.
Very little or no protection for components not subject to corrosion stress such as
Slight protection for components subject to low corrosion stress such as
Medium protection for components subject to moderate corrosion stress such as
Strong protection for components subject to high corrosion stress such as
Strong protection for components subject to extreme corrosion stress such as
These applications should be supported with special tests with the respective media when appropriate.