Case Study : Failure of Temporary Corrosion Protection Methods

Case Study: Failure of Temporary Corrosion Protection Methods Temporary corrosion protection strategies are often used in industrial applications, to protect metallic parts that are going to be stored for extended periods. This paper describes the failure of two types of methods (peelable coatings and volatile corrosion inhibitors) that were used on steel parts stored in an exterior environment, in Northern Canada. The main causes of failure were related to poor adhesion, weathering and water intrusion inside of the sealed packages. It was found that proper inspection strategies were critical to long-term reliability of the corrosion protection. The applicability of alternative methods, such as heavy grease coatings were also evaluated, including environmental aspects.