| Life Cycle Predictions for Coating Systems | ||
| James Ellor, Lauren Krogh, and Pete Ault, Elzly Technology Corporation
Life Cycle Predictions for Coating Systems In service coating performance data is sometimes collected in an effort to predict coating life expectancy and time to failure. Having a general knowledge of coating life expectancy has many benefits such as being able to project future maintenance requirements, prioritize repairs, estimate the impact on life of different coating application parameters, and being able to quantify the risk associated with deferred maintenance. The DoD maintenance communities benefit from knowing which pieces of equipment are at a greater risk of coating failure, which pieces are a priority for repair and the performance factors influencing coating life. The following paper reviews the application of a statistical approach to address these issues. The paper illustrates the expected failure times for different services; the impacts of coating system and surface preparation selection; and the incremental coating deterioration and substrate corrosion that might be expected with deferred maintenance. The paper will also discuss the analysis of potential defects / deterioration phenomena wherein the concept of failure is not always perfectly quantifiable—i.e., aesthetic deterioration. | ||