Our main product
2-in-1 Rust Converter & Metal Primer
Converts rust and primes in one coat. Red Oxide or Black. Pint, gallon and five gallon sizes.
From $39.98
Shop Rust ConverterMade in the USA · Terra Care Certified · Family owned since day one
Industrial strength rust converter and primer. Made in the USA.
XionLab is a family lab in Florida that spent more than 40 years making industrial chemicals for hospitals, schools and manufacturing plants. Our 2 in 1 rust converter and primer turns rust into black iron phosphate and primes the metal in one coat, on damp steel, with no sandblasting.
From $39.98 · Free shipping · Money back guarantee
1,000sq ft per gallon
Made for
- Truck frames
- Trailers
- Exhaust manifolds
- Fences
- Railings
- Gates
- Grills
- Equipment
- Barns
- Structural steel
- Marine
As seen on
About XionLab
Industrial strength. Safer for you and safer for the environment.
Our mission is to bring the strength and effectiveness of industrial chemicals to the retail and commercial market, with the safety of the consumer and the environment in mind. Our family has over 40 years of experience in the industrial chemicals, janitorial and sanitation products industry. In the past we only did wholesale distribution, supplying schools, hospitals, pharmaceutical companies, restaurants, institutional buildings and manufacturing plants.
Our goal with XionLab is to give the retail consumer the same innovative, quality products that were only available to institutions in the past. Bottom line, we develop safe products that work. Everything is proudly made in the USA and manufactured to meet Terra Care Safer for Environment Products Standards. A percentage of our sales is donated to a nonprofit that helps prevent and treat drug and alcohol addiction.
More about XionLab40+Years in industrial chemicals, janitorial and sanitation products
USAProudly made in the USA. Orlando, Florida
Terra CareSafer for Environment Products Standards
20,000+Subscribers
Free rust calculator
How much do you need? Five questions.
Tell it the metal, the size, and how you will put it on. It works out the real coverage for your job and picks the cheapest mix of cans.
About twenty seconds. No email, no signup, free shipping on whatever it comes back with.
Rust calculator
Step 1 of 5
What metal is it?
This one matters. The formula is acidic, so it eats soft metals.
This one is not for that metal.
The 2 in 1 Rust Converter and Primer is a low pH coating. On aluminium, galvanised steel, zinc or lead it etches the surface instead of protecting it. It is made for iron, steel, cast iron and stainless steel.
If the galvanising has worn away and you are down to bare steel, it works. If you are not certain, write to us and describe the job before you buy.
What are you coating?
About how much surface?
Rough is fine. Length times height, both sides if you coat both. Type the number for a big job.
sq ft
How will you put it on?
A sprayer loses some to drift and pooling, so it needs a little more product than a brush.
How rough is the metal?
Pits, channels and deep scale hold extra material, so they drink more.
Your plan
Covers
Total
Work above 50F. Colder than that and it will not cure properly, whatever the forecast says about the days after.
Coverage is measured at 1.0 mil dry film. Damp metal is fine to coat. Wait 48 hours before any topcoat.
A gallon covers about 1,000 sq ft brushed on smooth steel, and about 530 sprayed on heavy scale. The questions above pick the right number for your job.
Before and after
Real jobs. Real customers.
Photos sent in by people who used one coat on their own metal. Truck frames, fences, trailers, roofs and a boat hull.
Customer photos are shared from real reviews. Send yours to [email protected] and we will add it here.
Why it works
Less paint. One coat. Done in two days.
4X
Coverage per gallon
530 to 1,000 sq ft* from one gallon. About four times what the other converters on the shelf give you.
1
Coat converts and primes
Rust becomes black iron phosphate and the metal is primed in that same pass. No primer to buy or wait on.
48HRS
Then topcoat, or leave it
Give it 48 hours. After that it takes any paint you own, or you can stop right there.
What we make
Two products. Both earned their ratings.
Industrial Strength Liquid Drain Opener
A thick, heavy liquid that sinks to the clog and eats hair, grease and soap scum overnight. Biodegradable, odorless, septic safe.
$25.95
Shop Drain OpenerFrom the shop floor
People who used it
It works wonders, just as promised. I applied it to an exhaust manifold and it converted rust plus it won't peel off. I then applied it to the chassis and painted it. No other product has done that.
You cannot go wrong with a company that believes in customer satisfaction like the people at Xionlab do.
From the resources
Learn rust before you fight it.
When to Use a Rust Converter on Metal (2026 Guide)
Covers when a converter is the right call for rusted metal, when it is not, and what to do before you open the can.
Read the guide: When to Use a Rust Converter on Metal (2026 Guide)
Can You Prime Over Rust Converter? (2026 Guide)
Answers the primer question and walks through what goes on top once the converter has cured.
Read the guide: Can You Prime Over Rust Converter? (2026 Guide)Your A to Z Guide to Rust Formation and Prevention (2026 Guide)
A long read on how rust forms, what speeds it up and what slows it down.
Read the guide: Your A to Z Guide to Rust Formation and Prevention (2026 Guide)Do I need a separate primer?
No. One coat converts the rust and primes the metal. A topcoat is optional. If you add one, wait 48 hours first.
How much do I need?
A pint covers about 125 sq ft. A gallon covers 530 to 1,000 sq ft* depending on how rough the surface is. Measure the job and run it through the rust calculator.
What metal does it work on?
Iron, steel and stainless steel. Truck frames, trailers, exhaust manifolds, fences, railings, gates, grills, equipment, barns, structural steel and marine work.
How do I prep the surface?
Wire brush the loose flakes and leave the firm rust. Remove grease and oil. Do not grind to bare metal. Damp metal is fine. Apply with a brush, roller or sprayer, thinned with no more than 15 percent water. Do not apply below 50F.
What is a rust converter?
A rust converter is a coating that reacts with rust and changes it into a stable compound. Ours turns iron oxide into black iron phosphate. Instead of stripping rust off, you turn the rust itself into a hard layer you can paint.
Can I paint over it?
Yes, after 48 hours of cure time you can apply urethanes, epoxies, enamels in oil or water base, alkyd, bitumen, or chlorinated rubber. Most competing products only accept oil based paint.
Will it work on a damp surface?
Yes. It is water based, it will not trap moisture, and it is the only rust converter for metal that applies to damp surfaces.
How hot can it get?
In lab tests the cured coating held up to 300F, and it expands and contracts with the metal down to 30F.
Free shipping on every size
Pick a size. Fix it this weekend.
Ships free. Easy returns. If it does not do what we say on this page, send it back and we refund you.
