[kmarron]

Hi All, i've been away for a while. Needed some time to walk away from the never ending project and get some family time in. Now I'm back full bore. I am just about ready to finish the underside of the car. I will be for the most part stripping the enitre underside of the car from the firewall back down to bare metal. What primer should I use once stripped? Is there a rattle can application? the car is on jackstands. Also what should I use for underside? Somthing like lizard skin or the coating that they use for bedliners? Thanks in advance for the input.

[camaro_z28_1969]

That's lots of fun!!! I just completed scraping and sanding mine. I used R-M EP569 gray epoxy primer, then Fusor 123EZ seam sealer, followed by Limco Supreme Plus urethane single stage paint. I went with a light gray to contrast with the black suspension pieces. I'm not planning on putting any undercoating on it since we don't need it here in Phoenix.

http://www.camaros.net/forums/showthread.php?t=206960

Good luck on your project.

[BobKovacs]

There are plenty of rattle-can products, but if you want a finish that's going to last, they aren't it. If you're going to go to the trouble of stripping everything to bare metal, you want to use an epoxy primer. As far a finish coat, you can leave the epoxy as the finish, or apply Lizardskin, etc., which will provide some heat and sound control as well as protection.

You can get rattle-can epoxy, but it's insanely expensive- something like $20/can, and I don't know that anyone has ever done a comparison to see how it holds up compared to normal epoxy. You can also consider rolling or brushing epoxy on- I spoke to Barry, the owner of Southern Polyurethanes, and he recommended brushing or rolling as a viable option. I've brushed several areas on my current project (mostly areas that either will never be seen, or that will later be sanded and covered with polyurethane primer/surfacer), and the results are pretty good. It lays out with minimal brushmarks, and if you're not building a show car, it's something to consider.

[BPOS]

I just finished the same project - fun ain't it? After getting the belly to bare metal I shot a couple of coats of Omni black epoxy primer followed by a couple coats of SEM Trim Black. All lying flat on my back. The job was NO FUN!!

[kmarron]

Not fun at all. Can't wait for this part of the project to be done. Definetly not building a show car. I am going to drive this car hard but still want to look good.

[allanjs]

Without a doubt use an epoxy primer. I'm not a fan of the Lizard Skin,
bed liner, undercoating, etc. on the under belly. For added durability use a
hardener in the paint if you want to top coat the epoxy. Hardener also adds
gloss. Use compatible products.