Hello everybody, I'm new to the site. I just purchased a 67 Chevelle 2 door Malibu. It is in pretty good shape but I still want to do a frame off resteration to make a show car out of it. I have been researching several types of coatings to cover the undercarriage and frame with. One of them that I hear a lot about is the POR-15. I got on there web site and it said that you brush this stuff on. Is this true? Can you get a spray on applicatiion? Does anyone have any pics of the POR-15 applied? I am just trying to do all of my research before I jump into this project.

Thanks,

Justin

Justin;

You'll get a lot of folks who agree with the POR and others who aren't all that impressed.

I think like anything, POR-15 has it's place. It's certainly wear-resistant, but only when applied properly. Most paint, undercoating, etc is like that... The nice thing is, POR does kill rust permanently, assuming you do your prep according to the manufacturer's recommendations.
It is able to be rolled, brushed or sprayed, and it is very permanent. If you use it, make sure to put a piece of cellophane btwn the lid and the can or it'll seal itself shut forever!

Once on, POR-15 looks like paint, acts like paint and will be very durable. Some folks ahve asked about using it as a garage-floor coating, an undercoating for paint and a few other interesting ideas. It's not a stop-the-world product... it's just another option, and when used properly for that which it is intended, a -good- product! I don't work for them, sell it, etc. I just was happy with my final results...

Sorry - no pix, but just imagine a semi-gloss black frame and you'll get the picture...

I did the subframe of our Z28 with POR15. I was really pleased with the results.
See the link below


http://temp.corvetteforum.net/c3/dwaynes69bb/AmyesZ28resto.shtml

sorry no pics, but I'm one of the those not all that impressed. Look at a product from Eastwood called Cooreless (sp?) rust encapsulater. Great stuff, cheaper, less prep work, easier to apply and in my experience just as, if not more durable.

Do a search for por 15, we have had some real knock-down-drag-outs on that topic. :D

Professor_SS I will look into the Eastwood product you mentioned. thanks.

The car doesn't have much rust on it at all. On POR's website it says that it's recommended to put a topcoat over the POR-15 such as there semi-gloss "Chassis Black". Is the por-15 or the top coat textured at all? The reason I ask is I want to know how many inperfections I could hide with it.

Thanks guys for the help.

I've been cleaning up my hard drive so I'll have to take some new pictures. But I've nothing but success with it and cannot offer an explanation as to why some people just cannot get it to work for them. I used it on my interior floor and inner fenders. I also used it on my battery tray six years ago. It's been exposed to battery acid and anti-freeze and it still looks as good as it did the day I painted it. The finish did not chip, peel, or soften when exposed to the harsh chemicals.

This is best pic I have.
http://www.chevelles.com/showroom/Finally/P1000845.jpg
Frame is POR-15, control arm is not. I think it's great. Applied with a brush it levels itself out, no brush marks. Tough as nails. Like anything you need to prep it right, but this stuff likes rust. It adheres better to a rough rusty surface. You only need to get the dirt and grease off, not all the rust.

I'm not big on " Painting Over Rust ". Why would you want to, if you have the desire and ability to get rid of the rust?

If you're going frame off, then your frame components can be blasted and painted properly, or perhaps powdercoated. I like their engine paint, but you use a nice clean surface for it.

Originally posted by 4spdrat:
I'm not big on " Painting Over Rust ". Why would you want to, if you have the desire and ability to get rid of the rust?

If you're going frame off, then your frame components can be blasted and painted properly, or perhaps powdercoated. I like their engine paint, but you use a nice clean surface for it. Sorry, I re-read his post and he is doing a frame off, didn't catch it first time. In that case, yes you would want to remove the rust, else why bother with a frame off. POR-15 is still a great product. It adheres to rusted/seasoned metal very well and prevents further rusting when used properly.

Well technically, you don't paint over rust directly. You use a wire brush to remove the loose scale and flakes. Por paints adhere best to roughened surfaces such as those that have been wire brushed or sandblasted. When you apply it to a roughened surface, you should only use a good degreaser/cleaner before applying the Por. Only use the Metal Ready etching solution on smooth new shiny metal that has no corrosion. I think this is the mistake that people are making. They are using the etching solution on metals that have been sandblasted or wire brushed and then they can't get it all off before applying Por paint. Then it causes the Por to lift and bubble. This is according to our local distributor.

In the instructions it says to not use any oil based degreasers. (is that an oxymoron?)

What would you use to prep the surface of something that's been sandblasted or is rough?

Take a look at my "bodywork" link below. I used POR-15 on my interior floorboards...