Epoxy in sun

aldefed

Promoted Users
So I am going to be spraying 2 coats of epoxy on the car today. It will be about 74 degrees but with full sun. Will there be any issue spraying the epoxy in full sun?
 
Should be able to do it. There have been times when I would shoot black epoxy outside and the surface would get too hot, but seeing your location and the temps you should be able to. Just have to try it and see.
 
I used to do most of my priming in full sun, still do sometimes. I painted a 28' aluminum camper entirely outside so it was always full sun.

Like the others have said, if the metal gets too hot it can cause issues. I got a lot of practice in that these last two years and have found that if the metal is too hot to hold your hand on, it's too hot to paint. I was spraying epoxy on the roof of that camper, wear only a fresh pair of clean socks standing on the roof, and it was so hot it was burning my feet. Couldn't crouch because it would burn my knees. You'll get a lot of solvent pop and it will look like somebody came and threw sand all over it.

I learned I didn't want to do that on my cars (it was a friend's camper and he didn't care, lol). If I'm going to be spraying something in the driveway (because I'm a front yard hack) I clean it in the shop and then push it out in the drive way right before I spray it to prevent the metal from sitting in the sun and getting hot. Then I'll usually push it back in the shop after spraying but that's because I don't want to speed up my 7 day window on the epoxy.
 
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