OSPHO 1 Gal. Rust Treatment Drywall Joint Compounds & Tape contains more iron for a

contains more iron for a deeper green

and rust resistant

For use with 300

replacement handle for collins true-value item #'s 101-576

OSPHO 1 Gal. Rust Treatment Drywall Joint Compounds & Tape contains more iron for aOSPHO is a rust inhibiting coating not a paint. OSPHO causes iron oxide (rust) to chemically change to iron phosphate an inert, hard substance that turns the metal black. Use on new metals, for new ferrous or aluminum metals. Is effective for exterior and interior work alike. Recommended for use under oil base primers and paints. Test a small area before using under epoxy or latex base paint. Covers approximately 600 Sq. Ft. per gallon. Normally