Best Rust Converters And Inhibitors For 2022

The FDC Ultra Rust Converter tackles all types of rust and corrosion that occurs on metal surfaces by turning rust into an inert coating and preventing moisture from seeping back in. The company boasts that no sand-blasting, sanding or scraping of the rusty surface is needed, but we still recommend to lightly scrub or descale larger problem areas to get the most bang for your buck.

One gallon covers 500 square feet, though once the first coat dries to a dark finish, usually within 20 minutes, a second coat is recommended for ultimate rust stopping power. Once the 48-hour cure time is up, skip the primer and apply a high-quality oil-based paint finish to wrap up your repair. Though it’s not enough time to test the product to its full potential, PDC does offer a 30-day money back guarantee if their product doesn’t cut it.

Evapo-rust Rust Remover is an environmentally safe water-based product that will not harm plastic or PVC and most paints. Because it is non-toxic, it’s easy dispose of. It’s even safe to use on household items such as cast-iron cookware, grill grates, tools and antiques. 

Some customers have complained that their rusted metal had to soak in the product for too long to be effective, but it’s also important to note that all oils, grease or residue must be rigorously cleaned off for this product to work efficiently. Wire-brushing the area is also recommended. Let Evapo-rust sit on the problem area for 24 to 48 hours and re-apply as needed. The product also works well for soaking smaller items in a tub as it is reusable. Rinse and dry once removal is complete, then coat with primer to seal the metal from moisture.

A longtime favorite among old car owners in wet and snowy climes, when it comes to stopping rust and preventing it from spreading long-term, POR-15 Rust Preventative Coating is hard to beat. Once dried, it leaves a hard, non-porous surface that protects metal from moisture and won’t chip, crack or peel. The product has been tested at over 450°F and exceeded a 2,000-hour salt spray test. It is also acid and alkalis resistant and will repel fuels and oils.

Like most products, POR-15 is best used on pre-prepped and cleaned metal surfaces. Using a respirator and skin and clothing protection is highly recommended, as this product is not environmentally or human friendly. Additional primer or paint isn’t necessary unless you desire a painted finish, or if the surface will be subjected to prolonged exposure to the sun. For permanent results, consider the POR-15 three-step system.

A list of top-rated rust treatment products wouldn’t be complete without mentioning the Rust-Oleum brand. Rust-Oleum’s Rust Reformer Spray uses an oil-based formula that can be used on any metal surface to convert rust to a flat black, protective paintable surface. It dries in just 20 to 40 minutes depending on your environment and fully cures within 24 hours after being sprayed. Rust-Oleum Rust Reformer should not be applied to surfaces that will exceed 200 degrees Fahrenheit.

This reformer spray works best when sprayed in overlapping strokes for a thick coating. Keep the can moving while you spray or you may find pooling paint or runs. The “any angle” spray comfort tip allows you to apply the reformer from any direction to coat even the most hard-to-reach areas. Once cured, a primer coat to even out the finish before painting is recommended.

Fluid Film is a tried a true rust preventative that has been used for ships and offshore drilling rigs in highly corrosive marine environments for over 50 years. It is a non-toxic thixotropic liquid that penetrates metal for complete corrosion control and water displacement. It can also free up siezed rusted parts, conditions leather, vinyl and wood, and works well to safely prevent battery terminal corrosion. 

Re-apply seasonally, especially for those living in colder winter climes. Fluid Film will not freeze and offers protection from salted roads. Heads up: Application can be messy. We recommend laying down a tarp and wearing protection for your hands, eyes and clothing. An under coating spray gun attachment for your air compressor will make the application much easier, or Fluid Film is also available in spray can form.