Come in such systems as chlorinated rubber, vinyls, longoil alkyds, epoxy, polyurethane. They are usually manufactured to customers specifications depending on the area of application e.g. below and above water application. They are mainly protective with minimal attention to aesthetics. They come as primers. (Like zinc rich epoxies, phosphates), tie Coates and Finishes. Typical application methods include brushing, conventional spray painting and airless spray-painting.