Corroseal Rust Converter & Metal Primer – Stops & Prevents Corrosion on Metal, Pro-Grade Rust Inhibitor for Cars, Trucks, Trailers, Marine & Industrial Equipment, 1 Gallon

This product really works. Easy to apply, turns rust to a black hard surface, ready for paint. I used rustoleum.

So Far, Very Impressed !! Pick up a screwdriver or paint scraper, wire brush, foam brush, small empty container and neoprene gloves as it's sticky if you get it on you. Pour a little out into a small container (a little goes a long way) and apply to the rusted area. DO NOT POUR UNUSED MATERIAL BACK INTO THE NEW CONTAINER, It will contaminate the jug. I used a product in the late 80's or early 90's on my tailgate on a Ford Ranger that started to rust. It had a different name but it also went on like milk, then turned Black. I've purchased other converters since then that seemed "watered down" and didn't work nearly as effective. I assumed it had something to do with environmental or health concerns as to why I couldn't find it. It was of a different name but this is the same stuff. Worked wonders then, after two coats. It's not passed the test of time yet however, I have used it on my trailer and spots under my truck. This is environmentally friendly, non-toxic, non-corrosive, applies easily. I have nothing bad to say about it so far. Make sure you get all the loose rust off but NOT down to bare metal. It needs a little rust to stick. I had some drip onto the paint on my trailer, no big deal but it did "alter" the color of the paint. On bare metal, it seems to leave a film coating that comes off with my finger nail but over rust, you would have to sand it off. Very glad I found this rust converter again, It works GREAT. I see so many vehicles with rust destroying their cars in Pennsylvania snow/salt state. I can't believe drivers are unaware of this solution, after all, a smaller black patch may not look the best but a larger patch of rust looks much worse and that's where your small rust spot is headed. This may not be a "Professional" repair but it's also not at a "Professional repair cost". Sure, $53 is a lot of money but this stuff works and very easy to apply and over-all, its much less expensive to apply this than to ignore your rust spot. So easy anyone can do this and a gallon goes a long way. Even if you only did nothing to the rust and just applied it over the rust you would be much farther ahead. But if you do that, you'd have to wait until more of the rust flaked off (because it will if you don't first remove the flaking) but apply a little more over where it flaked off and your good to go. Also, if there are "paint bubbles" where rust is developing under the paint, remove the bubble, you will see rust under there. Apply Corroseal. I would highly recommend you get in there with a screwdriver without much pressure and remove the loose stuff and maybe go over it with a wire brush, clean the dust off, dry the area and apply, that's it and your resale value will show the difference as a small patch of this is better than a large patch of rust...You can also paint over this if you want, but you will still the area because it will not have the smooth texture of new paint, it will just hide it a little. Don't forget your undercarriage. If you live in a snow belt state and you have no rust yet, Wash the underside once a week but eventually a stone will break the paint seal and rust will start.

When I read other reivews and it said, a little goes a long way - I ordered a gallon anyway. They were right - a little does go a long way. I used wire brushes and even a wire brush on my drill to remove the loose rust off an iron pole in my basement - holding up the center of the house. I figured the $50 I spent for a gallon of this was a good deal as opposed to waiting and having a contractor come in and replace a rusted pole, not to mention probable damage to the house. This stuff is great. After I washed and cleaned and dried the post, I scraped off the loose rust - then I put 1/4 cup of this in the bottom of a plastic bottle I had cut the top off of - leaving about 3" sides. Perfect for using with a foam brush to apply the Corroseal. I applied it 3 times as I worked on the pole - applying each application before the previous application was dry. Worked beautifully - and I have a black band around the post and it looks great. I have two more poles to remove the rust and apply the Corroseal to. I will do that this fall after the summer time heat and humidity are gone. I worked up a big sweat and got quite warm doing this in June. But, it needed to be done and I didn't want to wait on this pole. I highly recommend this stuff - oh yes, it will get your hands black if you get it on your hands and don't wash off. Luckily it removes with soap and water if you get it while it is still wet. When it dried I used finger nail polish remover and also a LOT of abrasive scrubbing to remove it from my hands as it had dried by the time I noticed it.

Just tried it, I may need more, so far it seems to work well, time will tell in new england under large truck

Good product, stops rust

I really like using Coroseal. It leaves a nice primer hard black coat on the surface that is ready to be painted. Paint adheres great to it. i have used this product on two different classic truck restoration projects now and I am impressed every time. Pictures are before and after applying the Coroseal to the metal surface.

I've been looking for this particular brand for a while. I used it a few yrs ago but couldn't remember the name. Literally a 5 star product all the way around. You simply can't beat the performance, ease of use & value. Dollar for dollar the best product on the market that I'm aware of for dealing with rust. My before & after pictures show the skid plate to my 2009 wrangler after light wire brushing only. The before picture shows the rust exposed & a line from just coating the other side a minute before taking the picture. You can already see the product working. The after picture shows what it looks like about 5 minutes after applying one heavy coat with a $2 , throw away paint brush. The product is still drying where it went on really heavy but it will be all black & sealed by the time this review is posted. I absolutely LOVE this product. Worth every penny , especially if your vehicle is up north exposed to harsh weather & salt from the winter storms. I did my entire undercarriage last week and forgot to take pictures . Wish I did. Thanks for a wonderful product that actually does what it claims to do ( unlike those rattle can products that are just another cheap primer that never bond to the rust like they advertise) .

this is the best rust converter

Restoring my 2005 4runner, this product is fantastic, I had recently purchased a one liter container and as I continue my project, I did not hesitate at all to buy a gallon. Just love this product, extremely efficient

Formidable, certainement le seul véritable convertisseur de rouilles. Merci

I like the fact it neutralized the rust on my boat trailer & 4x4"s

It was expensive but worked well, metal needs to be clean. Easy to apply but make sure to wear gloves and keep skin covered because if you get some on you and it dries it’s hard to get cleaned off

Great product