Corroseal Rust Converter is an elite, industrial strength product for all marine, household, automotive, and industrial rust problems. Rust occurs naturally when the iron in steel oxidizes and returns to its original state, iron oxide. Through an innovative chemical conversion process, Corroseal Rust Converter converts rust (iron oxide) into a stable substance, magnetite. It also primes the surface with a high quality latex metal primer at the same time. Corroseal truly provides one step corrosion control. Corroseal features, water based rust converter with high quality latex metal primer, non-flammable, non-corrosive, easy to apply (brush, roll, or spray), easy to cleanup with soap and water. Eco-friendly alternative to sandblasting Corroseal is the best way to deal with rust because it is less expensive, less time consuming and is much more environmentally friendly than sandblasting. Corroseal eliminates the need to sandblast rust by chemically converting rust from iron oxide to magnetite, a black and inert substance. Don't remove rust, convert rust.
(83 reviews) 83
95%of customersrecommend this product77 of 81reviews
Rating Breakdown83 reviews
95%of customersrecommend this product77 of 81reviews
I used this for the roof on my 15 year old van with a galvanized body (the roof rusted anyway in the Florida sun & humidity!). Unlike 'automotive' grade rust converters this was one step (one product).
First I pressured washed the roof real well (which seems to be preferred over sanding), used a mini-grinder with knotted wire wheel on the rusted-through spots, then sprayed this on the entire roof. I used an HVLP (turbine type) with a large tip, 2.0 or 2.5 sorry I can't remember. Directly to bare 'clean' galvanized metal that hadn't rusted, the old paint, and rust from light to rusted-through. The heavy rust turned black right away, but took overnight for the light rust to turn black but it did. Then I fiberglassed the holes and sprayed another coat. When that was dry I painted, no primer needed.
I then used a garden sprayer to spray on the inside near the rain gutters so I got both sides of the rusted areas coated. This stuff is water based and cleans up fairly easily, just make sure you get it ALL out of your equipment before it dries.
Tech support at Corroseal was great! I has some issues because of 100% humidity and dense fog warnings 'till 10 am the nights after I applied but letting it bake in the sun, as per support fixed it!
I decided on Corroseal because if I used an automotive grade I would have had to use two, maybe three different products: a primer for the bare metal, the converter, then a sealer on top of that. Corroseal worked on everything: bare metal, old paint, rust, AND fiberglass. On top or underneath!
And, according to Corroseal, the US Navy uses it so that's good enough for me!
NOTE - the original color of the van is dark blue, almost black. Keep that in mind when looking at the pictures.
I had read reviews before my purchase. I am glad I did. Using a chip brush to apply the rust converter onto the surfaces was a very good suggestion. I am redoing the interior and trunk on a 1958 Chevy. There were lots of surface rust. I was able to treat the entire floor pan (front/back), four doors, interior roof and trunk with less than 3/4 gallon. Brushing allowed me to make a good even coverage and get the most out of the amount used. This was easy to apply and worked as described. I am attaching photos showing the rust on the floor, Corroseal applied-dried and after spraying primer paint.
Pros: Durable, Easy to Use, High Quality, Looks Great
Covered the entire frame of my flat bed trailer that is 25 years old. Scraped of flakey rust and brushed of surface rust with wire brush. Applied Corroseal and within minutes the rust started converting to black primed surface. After 24 hours I painted frame with Rustolium oil based black. This stuff is awesome. It does what it claims it can do.
Pros: Durable, Easy to Use, High Quality, Looks Great, hard as nails surface
This product does what it is supposed to do exactly! This saved a roof that would have cost 10's of thousands to replace. I highly recommend this product for rust repair. Love it! We ended up using 15 gallons and covered that with 20 gallons of Diamond Brite Paint. Looks great now!
Pros: Lots of Features
Images for this Review
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This is the Corroseal over the rusted roof area (in Black) Mid way of the project.
This is after covering with paint. Looks better than new!
This rust converter primer works just as described, it went on with a sprayer very well and was easy to see what areas I had covered and what areas I missed as I looked back over the trailer I was painting. I used one gallon to spray the entire 15 ft long x 8 ft wide utility trailer, bottom to top, before applying a top coat. I would definitely use this product again.
It won't work miracles, but Corroseal certainly does an excellent job of combating surface rust by converting it to a protective layer of magnetite. I have used it to restore a wheelbarrow and several hand tools that I thought I would have to throw out because of rust, and am in the process of covering my vehicle's frame as well (the road salt from a dozen winters will do a number on any vehicle). When applied smoothly and consistently, it'll leave a clean-looking surface behind.
Once the metal is rusted through, there's really nothing you can do to bring it back, but if it's not quite at that point yet, Corroseal will convert the rust on contact, thus providing a protective barrier for the metal underneath. Sometimes rust is just plain avoidable, but Corroseal can do quite a bit to slow down and even reverse damage. A gallon is more than enough for most household uses.
All in all, I'm quite glad I discovered this product.
Pros: Easy to Use, Durable, High Quality
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Corroseal after application on my vehicle. The body mount, crossmember, and bottom of the frame rail have been treated with Corroseal and appear clean & black; the side of the actual frame rail has not yet been treated and shows surface rust
Just finished painting rails and fenders of my antique car. Scraped loose paint and crud and lightly wire-brushed rust. It produced smooth, hard, black, surface. Next step is to paint with spray can of best black automotive enamel (per directions on Corroseal jug) I don't drive the car in the rain except on rare occasions and I am thinking the corrosealed areas will last way beyond my lifetime. At $50 some dollars a gallon it is only a bit more expensive than good paint and certainly worth the difference when you figure you have to prep down the bare metal when using paint. The time and effort saved by using Corroseal is incredible. Cons: Why doesn't Home Depot sell it in the store?
Pros: Easy to Use, Easy to Install, Looks Great
Cons: only available shipped.should be sold in store too
This is probably an isolated incident but my $60 bottle of rust converter was defective. Instructions on bottle are poorly written and in tiny print. Half of contents was solidified and not mixable. Cut open bottle in an attempt to mix product but impossible to do so. Cant return a cut open bottle. I will not order this type of product online again.
I have been driving around with a before and after demonstration on my rusty truck roof. Everyone who sees it says they have never seen anything like it. Including experienced paint retailors.
Just follow the simple instructions. The key is to get the second coat on while the first coat is still tacky. On a warm day or in the sun that might mean a rolling double coat allowing about a minute or two or three between layers. More than a single coat is really necessary for best results.
Pros: Very Adhesive, Even Application, High Quality of Material, Easy to Apply, Easy Instructions, Good Coverage, Good Protection, Dries Quickly
Practically every metal component on my 1995 Mitsubishi Montero had succumbed to rust. I had purchased other products with disappointing results. This rust converter goes a long way with exceptional coverage. I'm currently rust proofing my truck, and two SUVs.
Pros: Easy to Apply, Easy Instructions, Good Coverage, Easy to Use, Looks Great, Dries Quickly
I used this product on the frame under my horse trailer which was covered in surface rust. I crawled underneath the trailer and removed the loose rust with a wire brush. After that I shook the jug of primer and poured a small amount into a container which I used to paint it onto the trailer. The primer was thinner than I expected and it dripped on me some but sure enough, it turned black after about 10 minutes. It looks great and I feel confident it worked well since it changed color. I just wished it were a little thicker. Product went further than expected so definitely a good value
Pros: Easy to Apply, Easy Instructions, Good Coverage, Easy to Use, Looks Great, Looks High End
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Review 15 for 1 gal. Rust Converter Primer
Excellent product! Worked even better than I expected.
I used corroseal to seal my car trailer. The trailer was rusted all over, and under. I didn't want to wire brush or sandblast the entire trailer, so I searched for a rust convertor. The Corroseal worked perfectly. I lightly brushed part of the trailer, but when I was done you couldn't tell any difference between the parts I brushed and the parts I simply covered with the product. I brushed it on and within hours, it was dry, smooth, and black like primer. I have since painted the exposed portions and the trailer looks brand new. I used about 1/2 gallon on a 16 foot flatbed wooden deck car hauler.
i followed all the directions.it did what it said on the label changed the right color to let you know you did it right.it dried for 2 days then it rained and it went white and sticky. do the product was good as long as it was dry. i hope it doesnt do this forever it will be really bad.
I used it on the inside of a gas tank that, beside all the rust, you wouldn't believe what was in there. After cleaning out all that gunk, down to the rust, I applied the product by pouring about a pint in the tank than rotated the tank to cover all effected areas. There were some rusted areas outside where I brushed it on. It was much easier to apply with a bursh but, either way, this stuff gets rid of rust better and faster than anything else I've used. You just need to apply it and wait. In thick rusted areas, you will need more than one coat but, the rust will eventually be gone.
I purchased the 1 gallon amount to apply to the light rust on the frame of my pick-up. The item arrived 7 days after the online purchase. After experimenting with different ways to use the product on the underside of my vehicle, I have some suggestions that may be helpful.
Since it may not be practical to remove all your loose rust by hand, as this could take a lot of time and effort, I would suggest a good power wash from a high pressure nozzle to the underside, and especially focus on those areas with the most crusty build-up. Allow a couple of days for the frame to dry out completely before application. Make sure there is no rain in the forecast for a couple of days AFTER you apply the product, too. Any water on the Corroseal finished areas will stain if it has not cured for at least 24 hours. I prefer the spray bottle and paint brush application method to prevent waste and to also keep staining of other areas to a minimum. Although the directions say NOT to dilute the product, I chose to mix in 1 part water to 9 parts Corroseal, to very slightly thin the product and to try and prevent any clogging of the spray bottle nozzle. This worked well for me.Shake the product well before mixing.
Make sure you clean off and rinse the Corroseal bottle cap and cap opening as well as your spray bottle and brushes with water after each use, as the product has a tendency to harden like glue. I had a hard time getting the cap off after it had dried and hardened. Also, remember to use good quality medical latex gloves. I didn't use gloves the 1st time, and my finger tips turned black. VERY HARD to remove from the skin. Trust me on that! I had to use a kitchen scouring pad and lots of mechanics hand cleaner (from Pep Boys). Lesson learned. Needless to say, I used gloves after the 1st experience. Oh, and wear some old cloths you won't mind messing up too, as the black stains won't come out in the wash either.
The application process itself is fairly straight forward and fast, spray the product on the frame or rusted metal areas and then use your paint brush to evenly spread the product around to all areas. Apply as heavy a coat as you can without allowing it to run or drip off the frame. Work from top to bottom and from one side of the vehicle to the other. The product will run, but it doesn't run very quickly, so you will have enough time to spray and then use your brush to spread it out evenly. Don't worry about perfect brush strokes or overlapping, since the product will dry to a smooth even finish regardless of how many brush strokes or coats you apply. I would suggest buying 2 or 3 different sized cheap disposable paint brushes at the dollar store. Use a larger brush for fast coverage on open spaces and a smaller/longer brush for getting to those hard-to-reach and confined spaces. Some of the product may still drip off the frame, so use some newspaper or a disposable plastic drop cloth to protect whatever surface your vehicle is parked on if that is a concern. It dripped on my black asphalt in several places and it was pretty sticky and left some stains, and is still visible even after several weeks and a couple of good rain showers. I'm sure it will eventually get washed off the surface, but as Ben Franklin advised: "An ounce of prevention is worth a pound of cure". So use latex gloves and a drop cloth.
This is my 1st time using Corroseal, so I'm not sure how it will hold up over time, but I will check the truck frame again this coming Spring, and apply another coat as needed when the weather warms up. Using Corroseal is much easier than sanding, priming, and painting, and cheaper than sandblasting and having a pro undercoat the frame. Not sure if it's a "better" approach yet, but I like the results. So far, so good. I would recommend this product as a cheaper, and faster alternative to address vehicle frame rust.
Pros: Easy to Use, Easy to Install, Looks Great, fast
It is a bit expensive but it is very easy to use and works quite well. Loose particles have to be removed and then the corroseal is applied. It turns the rust black and neutralizes it. Of course the surface must be painted after the cooroseal.