Bodywork/Epoxy primer question...

Spdball · 10-13-2008, 03:31 PM

Ok, I'm one of the new guys, but I've done alot of reading about epoxy priming and body work. I'm not new to bodywork, but this is my first "down to bare metal" job, everything else was just repair stuff. Anyway, I got the roof and pillars completely stripped and cleaned of all material, sanded everything down with 80g paper, mixed the primer and let it set for 35-40 min, sprayed two coats on, and everything went pretty well after some spray gun malfunction. (do not clean gun with thinner prior spraying epoxy, if not 100% dry in every orifice, the gun will gum up) When I got up today I walked out to the shop and ther sat my shiny gray primed roof, It actually shined more than some of the paint jobs I've seen. My question is...Is this normal? I've never sprayed epoxy, but I've also never seen primer that came out of the gun and had a gloss to it at all. Has anyone seen this? I will try to attach a pic if I can figure it out. Thanks

05GTO · 10-13-2008, 04:17 PM

Some of the primers and epoxys have a high gloss used as a guide coat, once you block it the low spots will keep the gloss while the level areas will have a flat appearence. When we did the 66 we would wipe the low spots with filler or glaze and block again with 220 and then prime and block again.

Spdball · 10-13-2008, 04:35 PM

The filler is ok on the glossy surface?, or should I just find the low spots, scuff and fill?

05GTO · 10-13-2008, 05:59 PM

Most epoxy's are suited for filler to be placed on top of the gloss. I would scuff and then wipe.

blondie67 · 10-13-2008, 10:27 PM

We used a black epoxy primer on my car. It was super shiny at first and when painting black, it really helped to show all the low spots, etc. After a while, it did lose the shiny appearance though. At least with the stuff we used.

Linda

Spdball · 10-15-2008, 08:02 AM

Well, I went to sanding last night in a few spots an like you said, the low spots really show up. I'm not sure what color to go with yet, so I figured the gray primer is a neutral enough primer. I've got a little time before I need to worry about a color.

05GTO · 10-15-2008, 08:49 AM

Once we completed the wiping and blocking and had the car surface in good condition we went with a gray high build self etching primer, blocked again using 800 grit and then sprayed the car with 2 coats of color sealer, painted with 3 coats of single stage and then sprayed 3 coats of clear. Then color sanded starting with 1000 grit and worked our way up to 3000 grit, then polished.

Rukee · 10-15-2008, 08:51 AM

^^Did you wet sand the paint before you clear coated??

05GTO · 10-15-2008, 08:58 AM

Quote:

Originally Posted by Rukee

^^Did you wet sand the paint before you clear coated??

No, I don't believe they wet sanded the paint.

blondie67 · 10-15-2008, 12:22 PM

I know that my body guy used that original primer at first, sanded and used black epoxy primer, blocked and fixed everything and after painting three coats of paint and three coats of clear, wet sanded and buffed it three times. There is one more buffing needed but we're just waiting to finish the interior and clean it up. It turned out really nice and straight. I was extremely satisfied. Now, all I need are my trim parts.....
Linda