What can cause coating failures and defects?
Coatings suffer failures and defects for a number of reasons. These could include formulation, surface preparation, application, drying and curing times and conditions, and environmental exposure, with more than one contributing factor often being involved. Failures and defects can manifest themselves at various times in the life of a coating. Prior to application, they can take the form of settlement and skinning, during application as runs and sags, shortly after application as solvent popping and orange peel, and during service as blistering and rust spotting. This guide will explain each defect/failure, showing examples that will help you the contractor/inspector evaluate your coating to the root cause of the problem.