SPI over Nason Epoxy ?

K

keith

Member
Have a question. I agreed to paint a Model A. The previous shop had it sand blasted, welded in the patch panels, new floors, new wood and shot the complete car inside and out with nason gray epoxy primer. No filler has been applied to the body. It's been in primer for 6 months.

What would this forum recommend for me to do with the nason? I have no expierence with nason.

I've checked the condition of the epoxy. Appears to be one light coat and no peeling. Adhesion looks fine. I took my finger nail and scratched the new parts and the sandblasted parts and it looks like it is stuck.

Thanks for any and all advise.

Keith
 
I would guess this forum would tell you to treat it like e coat and take it all off. You are going to get blamed for any lifting whether or not it was from the epoxy.
 
More then likely it will be fine but still it's a tough call. I would be wondering why they didn't finnish it, if things weren't done proper and nothing lines up what then? Everybody is a professional, until they get their nose rubbed in it.
 
I have took the advice will not spray SPI over the Nason. I did however decide to use it as a guide coat! I don't know how much Nason cost, but it's most likely the most expensive guide coat I ever used.

Thanks for all of the advice.
 
A good test would be, get a razor scraper, pick out a flat spot on a couple different panels and see if in one swipe you can shave the epoxy off of metal. It should olny gouge or nick the epoxy after this amount of time. If ok sand with 180 and throw a couple coats of the spi over it.
The epoxy is air tight and with that my other concern is if metal was cleaned good for it to have proper adhesion..
 
Thanks Barry for your advice. However, I've decided to use the nason as a guide coat and get rid of all of it and not take any chances. I've included some pictures of the first 2 panels I've worked on. About 6 hours of hammer and dolly work, not 100% but real close.


 
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