This presentation will outline the results and conclusions of a number of years of testing and experience in surface preparation for high-performance coatings. Testing has shown that there are a number of important surface preparation variables that are not routinely monitored and controlled on coating projects. These variables will be identified and guidance will be provided on appropriate treatment to achieve coating results. The information is generic and applicable to almost all types of coatings, including liquid, high solids, plural component and most types of powder coatings. The majority of testing was accomplished on surfaces prepared using recyclable metallic abrasives; however, the variables are equally applicable to surface preparation using any abrasive type that is capable of preparing the surface with a uniform, clean, dust free, sharp, angular profile.

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