POR-15 Six Pack Rust Preventive Coating, Stop Rust and Corrosion Permanently, Anti-rust Protective Barrier, 4 Fluid Ounces, Gloss Black, Pack of 6

I've been a long-time user of POR-15 on my car's underbody and suspension parts as I live in the rust belt of the US. The smaller 2 oz. cans of POR-15 are perfect for yearly touch-up of components under the car to prevent rust, or control rust that has already started and needs to be arrested. I recently bought a 1998 car that spent it's life in WV and I used one 2 oz can under the car to cover most of the frame rails and the rear differential and a few axle parts. The semi-gloss black looks good. My experience with POR-15 is that it will stand up to the winter salts for 2-3 years before a touch-up is needed. Good kit.

You know why it's expensive? Cause it's worth it. And don't get sucked into buying quarts or gallons. This stuff has a poor shelf life once opened.

I rebuilt my brake system on my car and POR15 came as the perfect product to apply to backing plates and other protective shields after media blasting. Works very well, super hard and durable and nice finish. The paint cures and hardens very quickly, included in the can, which make this format of a set of small cans perfect for jobs where you cant do all your parts at once. Also, the paint is very liquid and tends to drip and stick to everything so make sure you work on a piece of cardboard or plastic sheet and wear disposable gloves, getting rid of it from surfaces including skin is a royal pain in the butt otherwise.

I have used POR15 for years. In my opinion it is the finest Paint Over Rust product I have ever used. It lasts forever, it seems (if you don't believe me, just get some on your hands)!!! It must be used safely with a lot of ventilation, and hand protection (because if you don't wear hand protection, you will wear this stuff for weeks afterward), and don't overdo your first coat of application. You don't need to be dainty about applying it, but if your first coat is too heavy, it will run and not turn out as good as it usually does. I live in the Florida Keys, and use this every few years on my boat's nozzles when I redo my jet boat pumps. I also use it on anything metal that is exposed to salt air. Apply it like the directions say on the can, and you will be very very happy with the results.

Good stuff but truly a nightmare to prep for. I'm not sure I can say this feels like a real DIY product due to the massive amount of prep work. I can see it being useful if you're doing a frame-off restoration and you have a huge garage, but if you're trying to coat parts that are on a vehicle or around other painted/finished parts, you're going to have a hard time. The metal prep will eat up your paint. It will also destroy concrete, which I discovered the hard way when I missed a few drops that had spilled onto a drop cloth and cracked my garage floor. It's very difficult to get the prep stage done according to directions as you have to keep the parts wet with metal prep for 30 minutes straight, while trying to keep it from dripping onto painted surfaces, concrete, etc. The marine clean stuff has ethylene glycol in it, which is a toxic chemical found in antifreeze. Not totally sure where they get off saying you can just dump it in the grass. I did a section of my truck's frame in the yard, but I won't do any more of it without like a kiddie pool or something to put my truck in. Even then, I'd need a safe way to dispose of the water/chemical mixture. In my city, it is illegal to dispose of the prep chemicals other than at a hazardous material processing center, and then only in small amounts. More annoying is that after all of that, the sections I coated will need to be roughed up and painted over, because POR-15 is destroyed by UV light. I won't be using POR anymore, I'd rather use almost any other coating that is easier to apply. The rest of my frame and axles are now rubbed with a nice thick coat of oil that I'll be reapplying once a year or so. Gave the product 4 stars because all of this info is readily available if you look through POR-15's website and data sheets, and it seems to work as advertised.

As a mechanic, I've seen my fair share of corrosion damage. That's why I was excited to try POR-15, a highly-rated corrosion prevention coating. Here's my experience after using it for months at work and on personal projects: Pros: Excellent Adhesion: This stuff sticks to practically anything! I've been impressed with its ability to bond to various surfaces. Durable Finish: The finish looks great and seems very tough. Versatile Application: While the product allows application on various surfaces, I recommend some prep work beforehand for optimal results and a longer-lasting, professional look. Overall, POR-15 is a fantastic choice for anyone who needs serious rust prevention. It's easy to use, highly effective, and delivers a great-looking finish with a little prep effort. Here's who might benefit most from POR-15: Mechanics or DIYers dealing with rust issues Anyone looking for a durable and versatile corrosion protection coating Tip: While not strictly necessary, following the recommended prep work can significantly enhance the final outcome