Corner coverage in coating compositions

Edge coating can be controlled through the use of a small percentage of magnetic filler, thoroughly dispersed in the resin portion of a coating composition, and a magnetization step during gellation. Dielectric and aging characteristics are not appreciably altered by the magnetic oxide modification. Coating compositions can be optimized with regard to properties such as flow, surface continuity, wetting characteristics, etc. without compromising for edge coating characteristics. Application processes are not lengthened because of the magnetization step. Material savings can amount to 25-50% of the cost of conventional coating materials depending on stator configuration.