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.
(75 reviews) 75
96%of customersrecommend this product70 of 73reviews
Rating Breakdown75 reviews
96%of customersrecommend this product70 of 73reviews
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
Images for this Review
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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
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
I used it on a boat trailer by jus cleaning off any dirt, grease and loose rust then brushed it on. No more rust and it has a gloss black finish. I have bolts holding my dock together that had rusted ends and it worked great for them as well. If you catch it when it is still wet on the brush it cleans up with water otherwise it is like getting Pac glue on your hands to, you have to peel it off.
Pros: Very Adhesive, Even Application, High Quality of Material, Easy to Apply, Good Coverage, Easy to Clean, Easy to Use, Good Protection, Looks Great, Looks High End
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
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.
Applied this to metal doors after doing some minor rust removal by hand-scraping and then washed off with apple cider vinegar and dried. Product goes on like paint and then turns blue to black when it has changed the rust to magnetite. Used roller and brush for the tighter places. Waiting for 30 days to pass and will apply Rustoleum oil based paint.
Doesn't smell, but will take some effort to wash off hands if allowed to dry. Turns the roller pan, rollers and brush kind of blue/black. It will clean up w/water though.
I would highly recommend at this time for the uses it claims to be good for. I gave a lower rating for value because it is, in my opinion a little expensive.
I started out applying with a brush then switched to spraying. I should have sprayed it all because I ran out before I was finished. Spraying makes it go much further. I only needed a small amounf additional and didnt want to wait another 10 days so I got Krud Kutter rust converter by the quart. It cost less but I had to prime it afterwards before painting which I didn't have to do with Correseal. I used this on a metal shed and am happy with the results. The only negative is the delivery time.
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
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 used this on a rusty old jeep that sits out in the elements, trying to keep it usable on our lease for a few more years. The product was sprayed on using an electric house paint sprayer and it covered well. The process seemed to work as advertised as it changed colors while drying. 24hrs later I painted over all the treated areas using the same paint sprayer, and the paint went on evenly and bonded very well. It has only been a couple of weeks, but seems to be holding on, so far so good, I would recommend it for similar applications.
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.
I used this on a spot of the chassis on my pickup truck as a test before I go putting in all the labor of scaling the rust and applying this product. The spot I tested wasn't even a heavily rusted area. The only direction I didn't follow was to apply a coat of paint after this product dried. My theory is that if this product truely turns rust to a magnite of whatever it is supposed to "convert" this too then it should hold it's own atleast for a little while. This product was on for a month, and new rust is starting to work its way through. Therefore in my opinion it FAILS. It would probably be just as beneficial for me to scale off the rust as much as possible, use a normal paint primer (which is a lot cheaper) and apply a coat of paint, which is required anyway. Other things worth mentioning, this stuff is thick. I wanted to put it in my weed sprayer canister but I don't think it would work out so well. Also this stuff appears to be just a sealant like any type of deck concrete sealer. I say that because you will get the same results covering rust, it will turn black "convert".