Permatex81849 Rust Treatment, 10.25 oz. net Aerosol Can, Factory, Pack of 1

Works for swamp cooler.

Loved this product turn rust into a paintable surface works great stops rust in its tracks

So far it seems to do what it advertised. I like being able to use it as a spray rather than brushing on rust treatment. The only problem I had was the tip became clogged for some reason 2/3 of the way through the can.

I have both products and found that the brush-on liquid needs one-two applications to get a good result. With the spray after two applications it is still not covered as well as with the brush-on treatment.Definitely more convenient to use and much faster to apply, although not sure if it will give the same level of protection. If i need to spray this 3-4 times to get good coverage than I may get faster and better result using the brush-on liquid.One major issue with brush-on product is that you should never use it out of the bottle unless you plan to use all of it. If you dip the brush into the bottle rust particles on the brush will react with the the product and in a few days any unused portion will turn into unusable mess.

pretty good will buy more for the price

Pretty disappointed in this product to be honest. I was hoping for a little more ease of use. I did test spots on my snowblower, wheelbarrow, piece of steel. I sprayed a particular pattern on each one every day for 13 days without any other preparation. It really had minimal results and zero points turned black like I was hoping for. Oh well, live and learn.

Used on car body panels and painted bumper, rust never retuned on panel but returned on bumper, not sure if it was because of thicker metal, not enough product applied or other reason. rust did not return near as bad and I did not put as much effort as I should have into the bumper.

Bought this Years ago, recently spoke to manufacture converts existing rust to stable metal and can be painted over. Literally stops rust How read belowWhat is Rust Converter? Rust Converter, a water-based primer, contains two active ingredients: Tannic acid and an organic polymer. The first ingredient, tannic acid, reacts with iron oxide (rust) and chemically converts it to iron tannate, a dark-colored stable material. Tannins are a group of water- and alcohol-soluble natural products extracted from fruits, trees and grasses. The second active ingredient, 2-Butoxyethanol, is an organic polymer that provides a protective primer layer. The overall chemical reaction converts rust into a stable, black protective polymeric coating that serves as an excellent primer for both oil and epoxy based paints.

約半日(11月 寒冷地)で黒錆に変わった箇所と赤錆のままの箇所とがある。

当然ではあるが、赤錆びを黒錆びに「変換」する商品。酸化の進行を遅らせると思った方が良い。長期間に渡り錆の進行を遅らせるのであれば、ワイヤーブラシやブラスト等の下処理は必要。

防錆力弱し → サラサラで皮膜が弱くすぐに錆が再発しそうな商品。(　>д<)､;'.･ 日本ではあり得ない！

It doesn't seem to be effective. Followed instructions.Sprays on clear, stays clear (states it finishes black), has not prevented rust.

Not sure why this product I so hard to find in Canada, maybe something to do with chemicals used . Very expensive to order at $60 with shipping versus around I think $15 a can in the US.However for treating rust I’ve come across nothing better.Still worth it if you think of h cost to cut out/grind down metal to fix certain rust and repaint