OSPHO METAL TREATMENT LIQUID - When applied to rusted surfaces, it resists/retards rust in chemical change on drying to a tough, hard surface ready for priming. A paint job will last longer after an application of OSPHO because subsequent paint coating securely attaches itself so that moisture and oxygen normally do not attack the metal. OSPHO is water-thin, can cover a larger area than paint, and goes on easily. It is equally effective for exterior and interior work alike. Product is sold by the quart or gallon. OSPHO IS NOT A PAINT

SHIPPING NOTE: This product IS considered hazardous to ship. Freight charges will be higher than what is quoted at check out. Please call for an accurate shipping quote.