I am cleaning up a rusty floor pan. Is POR 15 really that much better than a spray rust paint like Rustolium that you can get at the auto parts store?

Yes, it is MUCH better. I used some high gloss rustoleum on some parts and they have already faded and started to chip after 5 years. Subframe and floor pans still look GREAT covered in POR15.

You can get a spray can of Zero Rust online, too that's as good as POR15, cheaper and easier to apply. I have some of it on my car, too and it still looks great.

Drew

POR 15 encapsulates any rust, and prevents oxygen from getting to it to further promote the process.
POR15 is almost as tough as metal, won't chip even if bent etc... it's got to be one of the best products on the market for a variety of uses.

This just being one of them...

Brett - 67 Drop Top 455!

Rob,

If you do decide to use POR15 make sure you cover up your skin. This stuff does not come off very easy at all if you get it on you. Safety glasses are also a good idea when applying. Other than that, excellent product as said.

"This stuff does not come off very easy at all if you get it on you"

The keys words there are "at all"

The only thing that makes it go away is...time. Just try not to get any on your forehead like I did! LOL

-John

POR 15 is like another layer of steel over your rusty parts. Be sure to degrease first with POR Marine Clean, then use POR Metal Ready etcher so the POR 15 adheres to non-rusted areas. Brush on 3 coats of POR 15 and floors should be solid as a rock.

There is no comparision to Rustolium.

I have a pair of jeans with a nice POR15 reminder on them. Not too bad. THe leg underneath recovered in a week or two.

The only thing I was a little disappointed about por15 was how easily brake fluid ate it up. Should be good for floor pans and trunk floors. Anything exposed to UVs(sunlight) need to be top coated with some kind of paint.

Robert

I'll second that - my front subframe is painted with it and I might as well have spray painted it. The oil, gas and brake fluid ate it right up.

Firebob, did you put POR chassiscoat on top of the POR15? I did on the frame (left the undercarriage POR15 only)so I hope that will not be an issue. Haven't even got the brakelines IN the car yet so no experience on the chassis coat.

Is POR an epoxy?

I guess I'll look it up..

I work indutrial environments and I used to work offshore. Some of that two part epoxy paint is extremely durable.

My chemist dad thinks it's a urethane. It cures with moisture so it not only seals up the rust, but supposedly sucks the moisture out of the rust.

OK OK

I used the POR15. Works great (used gloves)

Called the maker - it is a "water activated urethane"

Thanks for all the help this site has provided.

You guys rock!

Ok POR15 is a good product but you might try a product called Rust Bullet it works better in the salt spray tests they sell it everywhere Google it to find it near you and NO I dont work for or get anything for this just experience.

Rob,

Glad it worked out for you!

Drew