POR-15 Rust Preventive Coating, Stop Rust and Corrosion Permanently, Anti-rust, Non-porous Protective Barrier, 16 Fluid Ounces, Gray

It works great BUT you have to prep the area before you put it down. Be careful, I strongly suggest you store this in a mason jar when youre done. It will stick the can lid straight to the can and you'll never open it.

If you want permanent rust proofing then this is the only product out there worth buying, It sets like porcelain and rust will not come back.I have restored a vintage Ferrari with this stuff, a fiat 500 and even coated my old cast drain pipes with it.Use metal prep solution first from por15 before you use this and take care not to get it on your skin as thinners or paint stripper will not remove it and it goes a very long way.I can definitely vouch for this product and I live in Scotland near the se where it rains most of the time.I wouldn't use anything else as rust proofing goes as this is the best there is.

I have known about POR 15 for many years now and have seen cars with this product used and have been impressed. I started my first car restoration a couple of years back, (1974 Datsun 260Z) and decided to use POR 15 more as a rust prevention agent after media blasting in places like inside the doors, cowl, and rear hatch hinge tunnels. These were all places that will not necessarily be seen and just wanted to take an extra precautionary action since these cars love rust.This stuff brushes on very well and I like how thin it is...it's almost like brushing on oil which was perfect for getting deep inside the pinch welds of the doors along the bottom as well as between spot welded supports inside cowl. It also drys to the touch very quickly and fully cures quickly leaving a nice durable finish.Overall I'm pleased with my experience with this stuff and the reaults I have seen with other peoples projects over the years using this stuff. Hopfully it will keep my Z protected for many years ahead.

This stuff is pricey, but it does stop rust! I have used a can of the black. I bought this thinking it was black. This is gray in color and I think I like it better for paint prep.

This is an amazing product! First time user of the product and it is simply amazing. I used it as a base for my rock sliders on my off-roader. Prepped and cleaned the sliders down shiny bare metal, etched and primed then applied the POR15. A little goes a long way oddly enough. It is the consistency of slightly thinned syrup. I brushed it on, it self leveled and the brush strokes disappeared and it dried to hard epoxy like she’ll. I had to scuff it up with sandpaper and coated that with spray on bed liner. The POR15 dries perfectly smooth as long as you do not over apply the product. Like I said I scuffed the gloss finish, and applied spray bedliner and it looks awesome. I waited 4 days for the bed liner to cure and hit the trail. A few scuffs and scrapes and one good scrape, which is what the sliders are for and it was easy to use a small brush after cleaning and dabbed some POR15 back on the scraped area and agin it self leveled and I hit it with the rattle can of bed liner. Blended in excellently and a few areas the bedliner scuffed but the POR15 held strong. Easy to touch up with the rattle can and the POR15 was as hard as nails. Very impressed and ordered some more to redo the skid plates and rear shin guards. I’m going g to use POR15 to prevent rust and encapsulate the metal protection on my off-roader. I’m sold, can’t believe this stuff sticks like it does and is as hard as it is when dried. If you have never used it, I encourage you to do so. I should have taken pictures. I thought it would peel and scrape off but it is as hard as nails, even rubbing against rocks on sliders. It is frickin’ awesome!