Coating compositions in the nature of paint for industrial applications; [ Corrosion inhibitants in the nature of a coating; ] Corrosion inhibiting paint type coatings for commercial marine use; Exterior surface protective coatings; [ Hard adherent refractory coatings for strength and corrosion resistance, namely, hard crystalline oxide coatings of aluminum oxide-magnesium with polytetrafluoroethylene for use on various aluminum alloys; ] Optical coatings; Polyurethane coatings for exterior a...