DuraCoil coating offers a long-lasting coil and surface protectant available in a convenient aerosol spray. Fast, air-dry formula bonds to all metals, providing protection with negligible heat transfer loss. Works well in coastal, industrial, agricultural or other corrosive environments. Also protects refrigeration system coils from food acids. By simply spraying the product on surfaces, contractors can extend the service life of coils or other system components and protect them from corrosion. Can be used as a protective coating on new installations or to repair scratched or worn coatings on existing equipment.