OSPHO 1 Gal. Rust Treatment Drywall Joint Compounds & Tape Set Combinations With Words Instead

Set Combinations With Words Instead Of Numbers

contains more iron for a deeper green

protected by a lifetime limited warranty for decades of dependable use

Along with the built-in ant moat

For use with 300

OSPHO 1 Gal. Rust Treatment Drywall Joint Compounds & Tape Set Combinations With Words InsteadOSPHO 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