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.

How long does Ospho rust converter take to work?

Treat galvanized metals differently, depending on how important appearance is. If appearance is important, apply a singe coat of Ospho and let stand for 30 minutes or until metal is etched. Flush with water or wipe to a smooth finish. Once dry, the surface is ready for paint.

Can you paint directly over Ospho?

OSPHO is environmentally safe and non-flammable. OSPHO seals out moisture and prevents future rust from forming. Paint can be applied directly over the dried ospho, but CCGC is not paint.

Do you have to rinse off Ospho?

When the intention is to leave ospho on the panel for protection, it still has to be wiped off with a dry rag, leaving only a thin film. This would be in the case of protecting the bare metal during the body working process, and when ready for paint then it should be rewet with a scotch pad and rinsed off completely.

What is the best rust converter?

Editor’s Choice: Evapo-Rust Original. Rust-Oleum Automotive Rust Reformer. JENOLITE Rust Converter. Loctite Extend Rust Neutralizer. Rust Converter ULTRA – Pro Grade Rust Repair. Corroseal Water-Based Rust Converter. VHT Rust Convertor Can. Rust Kutter- Rust Converter.

How long does Ospho need to dry?

12 hrs or overnight usually does it. It turns light gray then go over it with a fine scotchbrite pad, blow it off and prime & paint.

What is the best rust inhibitor?

Editor’s Pick: Rust Converter Ultra. Rust Converter Ultra is a highly rated, affordable, and easy-to-use solution to existing automotive rust problems. CRC White Lithium Grease Spray. WD-40 Specialist Long Term Corrosion Inhibitor. Dupli-Color Exact-Match Scratch Fix. Fluid Film Protectant and Lubricant.

Does Ospho expire?

Re: OSPHO Shelf Life

It says Ospho is stable when stored. It is a form of phosphoric acid, so the MSDS claim is likely valid, provided the container is still intact.

Do rust converters actually work?

Many car enthusiasts will argue that rust converters don’t work because they don’t prevent rust. A rust converter is not designed to rust proof but rather the inert compound formed once rust is converted forms a barrier layer to corrosion.

How do you make a homemade rust converter?

Simply put cream of tartar in a bowl with equal parts baking soda, then incorporate a little hydrogen peroxide at a time until you achieve a paste-like consistency. Rub this mixture over the rusty object, let it sit for an hour, then wash it in the sink. Voilà!

Will WD-40 stop rust from spreading?

WD-40 is a great tool and can be used on a lot of different surfaces, but does it remove and prevent rust? WD-40 will remove rust, as well as prevent future rust from forming. It works well because it’s a product that was designed to tackle rust, and it does so successfully on many different surfaces.