Corroseal-82320 Water-Based Rust Converter Metal Primer, Rust Converter - 1 Qt

I have used another product for a number of years dealing with rust as it occurs on a Freighliner chassis and tow gear and things. I've been surprised at how well it has worked. This product claims to convert rust in the same way but is water based instead of oil based. was a little skeptical about this being a water based product but read some reviews by professional restoration types on other websites that sounded excellent so gave it a try. First, water cleanup is definitely a welcome change. As to the product, the reviews of its long term effectiveness were good. I have no reason to doubt them but haven't used it long enough to confirm them, I have used it in a number of places over the past couple of months and been pleased with the result whether significant preparation was needed on heavy rust or just normal maintenance on light rust as it begins to occur. Follow the directions, including the additional coats indicated by the colors it presents as it dries and I think you will like the results. It will dry to a durable deep black finish somewhere between gloss and semi-gloss. It serves as a primer for paint at that point although the finish looks nice enough, even when applied with a brush ,that the only reason I think I'll paint is to make the adjacent surfaces look as nice as this turns out. I'm even considering just using this although it would make for an expensive paint where rust treatment isn't required. I did some black enameled panels where there was rust I brushed out in a few place and no rust in other places. I coated the whole panel and it looks nice and uniform in the previously rusted areas as well as the rest of the panel. I will definitely be purchasing more of this.

This is the best and only product to use. Even just one coat outperforms every other product and I have tried them all. Two or three coats and it may as well turn rusty metal to stainless steel. I like to topcoat with Rustoleum or XO-Rust. Save yourself time and money and try it.

This stuff is great. Converts the rust to a black tough primer, ready to paint.

So far so good I brushed this product onto trunk pan cleaned it did all the prep. Brushed on brushed on really well dried 24 hrs easy to use versatile I don't know. I imagine it is will try on other things now

Let me first start off with I am not technical--I am a homeowner who wants to maintain my home. I noticed that a filter device on my AC unit was showing substantial rust. I called the AC company that maintains the AC units (you would think they would have spotted this but that is another story) and it would be $250 for the part and labor. After some research and advice from my father in law who is a mechanical engineer and a rocket scientist, i chose to buy Corroseal based on other people's reviews and a need for a true rust converter. I followed the directions to a tee--first bought a dollar store set of wire brushes to scrape away any loose rust and paint and then lightly sanded with some medium sand paper. Then I waited for early afternoon to apply Corroseal--it is thicker than water but not sludge like thick. I applied it with a dollar store paint brush which I threw away after using. I did shake it up and then pour it into a plastic cup and applied it to the filter. It went on perfectly --any excess just dripped right into the ground. It adhered to the filter without a problem including underneath it. I let it dry 3 days--instructions say 24 hours but I wanted to make sure. it was completely dry. As you can see in picture 2 that it dried to a black purple which according to the website is the correct color when it works. I applied it to the entire filter unit including areas that were painted as well as the rusted areas. After 3 days of drying (we had rain one day but the Corroseal once applied stayed on with no problem) I applied Rustoleum Rust Preventer as a top coat. Just sprayed it on and let it dry (3rd picture). Looks good now and I think this should save the filter for the time being--if I can get another couple of years out of it or more it is well worth what I paid for Corroseal plus the brushes--(I had the rustoleum from another project and the sand paper as well). I think my total investment was less than $25. Really impressed so far --it is doing the job and hopefully has saved me from an expensive AC repair. For any questions I went to the Corroseal website and it provided very good info.

This product is awesome Out of all of the rust converters I have used over the years this has worked best for me. The only problem which is likely user error from leaving gallon jug in garage that is not climate controlled over time it settles and gets hard. Instead of purchasing the gallon and chancing it settling out and going bad over time, I decided to purchase the 32oz bottle which seems to be a great size and I will typically use the entire bottle fairly quick so no chance of going bad. If I need more I’ll just order another 32oz bottle. Researching this type of product it is best to store in climate controlled area if storing for long periods and is a good idea to flip jug end for end every now and then when you walk past it to prevent it from settling out.

I recently discovered Corroseal while researching rust mediation products on Amazon. Although I had not heard of this product previously, and it seemed a little pricey, I decided to give it a try based on the reviews. Boy am I glad I did! My test subject is a recently purchased 1999 F250 pickup. The truck was originally from Michigan, so I knew ahead of time that there would be rust issues. The first areas to be treated were the inside and outside of the door bottoms. Applied with a 2" bristle brush and 30 minutes later any rust that was present had turned from rust red to black magnetite. Moving on, I pressure washed the back half of the frame where the rust is most pronounced with a citrus based degreaser. Once it was dry I brushed on two coats or Corroseal with the 2" disposable bristle brush. Again, the rust was replaced with the black magnetite in less than an hour. It is important that loose or scaly rust is removed prior to applying the Corroseal, making sure to work it into any cracks or crevices. Once the whole frame is converted I plan to paint it with a Rustoleum oil based paint. Two quarts of Corroseal should do the job with enough left over for the mower deck, patio furniture, etc.. Much easier and more cost effective than sand blasting and I believe that the finished product will be comparable. UPDATE July 7,2019 I crawled under the truck last night and inspected the areas where Corroseal was applied. Frame rails, axle housing, brake calipers, bed bottom, etc. The areas with light rust that needed no prep other than the pressure washing look great. Smooth matte black finish. No new rust. The areas where the rust was thicker (frame rails and axle housing) showed a couple of spots of new rust. I believe had I properly prepped these areas with a wire brush they would look as good as the rest. The larger rust scales are still matte black (not rust), I just did not get the product into all the crevices. Remember, the truck wintered in Michigan. I am sold on Corroseal and have already made two more purchases for other vehicles I have been tinkering with. The wrought iron railings and security doors on our house have benefitted from treatment as well. Corroseal is the real deal and worth the money.

This stuff works great! I've bought many different brands over the years and nothing works as good as this stuff at rust converting.

Increible producto, sencillo de usar y seguro. muy efectivo siguiendo el proceso el cual no es nada complicado. lo seguire comprando cada vez que tenga un problema de oxido

Muy caro pero muy bien y facil.

Fácil aplicación

MUY BUENA CALIDAD

Esperaba una jalea naval, pero es un inhibidor de óxido de pintura imprimación. Funciona muy bien y se vuelve negro cuando está seco. Estoy muy contento con él y sólo usamos media taza para tratar una gran mesa de patio al aire libre.