Best Rust Converter

Transform rust into a protective polymer coating with our revolutionary formula. Say goodbye to rust forever.

FDC Rust Converter Ultra

Revolutionary Features

Water-Based Formula

Our environmentally friendly water-based formula is non-flammable, has low VOCs, and is easy to clean up with just soap and water.

Chemical Conversion

Chemically converts rust (iron oxide) into a stable, black protective polymeric coating that prevents future rust formation.

Easy Application

Simply brush, roll, or spray onto rusty surfaces. No need for extensive preparation or complete rust removal.

Versatile Use

Perfect for automotive frames, equipment, tools, fences, railings, and any ferrous metal surfaces affected by rust.

Excellent Coverage

A little goes a long way. One gallon covers approximately 500 square feet, making it an economical solution for large projects.

Professional Results

Creates a smooth, paintable surface that's perfect as a primer for your topcoat, ensuring long-lasting protection.

How It Works

1

Preparation

Remove loose rust, scale, and flaking paint with a wire brush or sandpaper. You don't need to remove all the rust—just the loose material. Clean the surface to remove dirt, oil, and grease.

2

Application

Shake the product thoroughly before use. Apply liberally with a brush, roller, or sprayer to the rusty surface. The milky white liquid will begin to react with the rust, turning it dark purple and eventually black.

3

Chemical Reaction

The formula chemically bonds with the iron oxide (rust), transforming it into a stable, inert compound. This process converts the destructive rust into a protective barrier that prevents oxygen and moisture from reaching the metal.

4

Curing

Allow the product to cure for 24-48 hours, depending on temperature and humidity. The surface will transform into a hard, black protective coating that seals and protects the metal.

5

Finishing (Optional)

For maximum protection, apply an oil-based topcoat after the converter has fully cured. The converted surface serves as an excellent primer for paint, extending the life of your finish.

Customer Testimonials

I used this on my truck frame and steel flatbed. Scraped and cleared all flaking rust and dust first. Brushed it on with a 4" paint brush and it seemed to do what it says it does. Covered really well. Did the entire frame and bed top with less than 1/2 gallon. Excellent product that applies easily and is water-based.
Customer Review
Michael T.
Verified Customer
My 2014 Tacoma was developing some rust spots underneath, so I tried this rust converter. It worked amazingly well! It looks like milk and does not have any nasty odor. I simply brushed it liberally on the rusty spots on the undercarriage, and within a day or two I noticed the rust was gone. No scraping or sanding required.
Customer Review
Sarah K.
Verified Customer
I recently bought the Rust Converter to use on the roof of my 2005 Toyota 4Runner. Years of roof loads had left scratches all over the roof that subsequently rusted. I followed directions and lightly sanded the roof to remove high spots. The rust converter worked as advertised and turned all the rust spots to a dark black color. This product took my prep time down from 5-6 hours to less than 2.
Customer Review
Tom C.
USCG Captain, Charleston SC
I just spent 3 long days peeling a 20-year-old commercial bedliner spray job on my F-450. The job absolutely sucked as each morning the entire grinded area was all rusted over again. I used the product over the really bad rust pitted areas and it did such a good job that I ended up laying this product over the entire bed. The proof was instant as the next morning there was no rust anywhere.
Customer Review
Robert J.
Verified Customer
Was recommended this product by a YouTuber for treating rust on cars. This product applies very well and dries slowly to ensure a good chemical treatment. With proper prep there is no need to apply multiple coats, the treatment is very durable and long-lasting, it is very shelf-stable, and a little goes a long way. I used 1/5th of the gallon to completely treat a car I was restoring.
Customer Review
David M.
Car Enthusiast

Frequently Asked Questions

Do I need to remove all the rust before applying?

No, you don't need to remove all the rust. Just remove loose rust, scale, and flaking paint with a wire brush or sandpaper. The converter actually needs some rust to react with. However, you should clean the surface to remove dirt, oil, and grease for best results.

How long does it take to work?

The chemical reaction begins immediately upon application, with the white liquid turning dark purple/blue within 20-30 minutes. Complete curing takes 24-48 hours depending on temperature and humidity. For best results, allow a full 48 hours before applying any topcoat.

Can I paint over it?

Yes, the converted surface serves as an excellent primer for paint. For best results, use an oil-based topcoat after the converter has fully cured (48 hours). Water-based paints are not recommended as they may not adhere properly to the converted surface.

How much coverage does one gallon provide?

One gallon covers approximately 500 square feet of surface area. However, heavily rusted surfaces may require more product. Many customers report that a little goes a long way, with some large projects like truck frames using less than half a gallon.

Is it safe to use?

The product is water-based and environmentally friendly with low VOCs. However, we recommend using rubber/nitrile gloves during application as it can irritate skin. Work in a well-ventilated area and avoid contact with eyes. The product is non-flammable and cleanup is easy with soap and water.

How long will the protection last?

When properly applied and sealed with an oil-based topcoat, the protection can last for years. Many customers report no rust returning after several years of use. For maximum longevity, we recommend applying a quality topcoat and performing periodic inspections, especially in harsh environments.

Ready to Eliminate Rust?

Transform your rusty surfaces into protected, paintable surfaces with our professional-grade rust converter. One gallon covers up to 500 square feet and provides years of protection.

$64.99
Professional Grade Rust Converter