SKYCO
OSPHO METAL TREATMENT PRIMER 1GAL
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RUSTED METALS - OSPHO is a rust-inhibiting coating - NOT A PAINT You do not have to remove tight rust. Merely remove loose paint and rust scale, dirt, oil, grease and other accumulations with a wire brush or pressure washer and let dry - apply a thin coat of OSPHO as it comes pre-diluted in the container. Let dry overnight for a minimum of 24 hours, then apply whatever paint. Longer dry times may occur depending on temperature, humidity and over-application of product. OSPHO has the consistency of water and treats up to 600 square feet per gallon. When applied to rusted surfaces, OSPHO causes iron oxide (rust) to chemically change to iron phosphate - an inert, hard substance that turns the metal black. Where rust is exceedingly heavy, two coats of OSPHO may be necessary to thoroughly penetrate and blacken the surface to be painted. A dry, powdery, grayish-white surface usually develops when cured. Brush off any loose powder and wipe down with Mineral Spirits before painting.
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NEW METALS - For new ferrous metals: remove dirt, grease, or oil; apply OSPHO in a thin coat, let dry for a minimum of 24 hours, then apply paint. Longer dry times may occur depending on temperature, humidity and over-application of product. A dry, powdery, grayish-white surface usually develops when cured. Brush off any loose powder and wipe down with Mineral Spirits before painting. OSPHO penetrates deep inside of the metal's pores to convert and protect before Iron Oxide is present.
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