Skyco Ospho gets rusty metal ready for paint
Painting straight over rust doesn’t hold. Ospho takes a different route. It converts the iron oxide, the rust, into iron phosphate, which leaves a rust-retardant surface that’s a solid base for paint. Paint applied over Ospho grips tight, so moisture and oxygen don’t get back at the metal as easily and the paint job lasts longer.
It’s water-thin, so it goes on easily and covers more area than paint would. Use it on interior or exterior metal. Skyco’s Skybryte Company has made this formula since 1947, and it’s recommended by paint manufacturers.
The details
- 1 quart bottle
- Converts rust to iron phosphate
- Interior and exterior metal
Frequently asked questions
What is Ospho and what does it do?
Ospho gets rusty metal ready for paint by converting the iron oxide, the rust, into iron phosphate. That leaves a rust-retardant surface that is a solid base for paint, so you treat the rust instead of trying to sand it all off. It comes in a 1 quart bottle for interior or exterior metal.
Can you paint over Ospho?
Yes, that is what it is for. Paint applied over Ospho grips tight, so moisture and oxygen do not get back at the metal as easily and the paint job lasts longer. It is water-thin, so it goes on easily and covers more area than paint would.
Does Ospho work as a rust converter?
Yes. Ospho converts rust into iron phosphate for a rust-retardant surface, instead of you grinding every speck of rust down to bare metal first. It works on interior and exterior metal and has been made by Skyco’s Skybryte Company since 1947.
Want to get it right? These hands-on guides from The Craftsman Blog show you how.
Watch the tutorial
How To: Make Rust Disappear
Rust is wood rot's metal cousin, slowly eating your tools and steel windows — but you can make it disappear. Scott tests a few methods in the shop and shares what works. A rust-converting surface prep is one of the keys.