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I live where it's really hot all Summer long (100+ F). I've got stuff I need to get primed. The primer cans say to prime in a range up to 77 F. Even at 6am before the sun comes up it's still in the 80s.
Is my only option here to primer the models inside (maybe in a bathroom when a fan going blowing the air outside)? Or would it be ok to prime models around midnight when it's in the 90s?

Thanks for any advice.

Edit: I'm in a desert, so humidity isn't a problem. Just dry 100+ heat.
I'm using (wanting to use) mechanicus standard grey spray.

I live in Virginia and it’s not so much the heat but the humidity here that messes with rattle cans.

Since the day I turned 1500pts of orks into a sandpaper-finish mess I don’t spray if it’s over 80F and too humid to comfortably stand outside without sweating. That said different cans have different tolerances. White sprays generally suck no matter what, the Rustoleum metallics I’ve been using have been more forgiving than the Krylons I typically use.

If I have to spray in the summer it’s early morning in the shade. Don’t spray inside, the fumes are way too strong and if you have a family they won’t enjoy it.

 Fajita Fan wrote:
I live in Virginia and it’s not so much the heat but the humidity here that messes with rattle cans.

Since the day I turned 1500pts of orks into a sandpaper-finish mess I don’t spray if it’s over 80F and too humid to comfortably stand outside without sweating. That said different cans have different tolerances. White sprays generally suck no matter what, the Rustoleum metallics I’ve been using have been more forgiving than the Krylons I typically use.

If I have to spray in the summer it’s early morning in the shade. Don’t spray inside, the fumes are way too strong and if you have a family they won’t enjoy it.

Thanks for the input. I should have noted that I'm in a desert, so humidity isn't a problem. And yeah you're right probably too strong to spray inside with family etc.

I can tell you from experience that spraying inside is a terrible idea. I did it one winter a few years ago because I didn't want to wait for warmer weather, and while the stuff I put on the floor prevented me from making a mess with the overspray, my apartment smelled like spraypaint for almost a week!

I would suggest doing a test spray on a dollar store toy, or something. Bonus if that inexpensive something could be used for scenery or another project later on. (Crashed jet or some such?)

As above, it’s never been too hot where I live, but SW Ontario gets too humid for spraying. So when I’m in doubt I do a test spray to see how it will turn out.

I live in Arizona so I've had the same problem. I've been spraying in the late evenings and it's worked fine but I never checked the temperature. As others noted, do a test spray in the early morning. If the can recommends 77 F then 80s F should be close enough I'd think.

If that doesn't work, maybe spray the area with water to cool it down for a bit while you spray. (never tried it, just thought of it)

Otherwise, you may have to wait until it cools down a bit. Here in AZ, the monsoon rains will cool off the air for a while and makes for great priming weather.

Here in Michigan in the summer I just have to suffer with the short -term fumes in the (cooler) basement with a dehumidifier on at about 45-50% humidity (I usually limit myself to spraying just a few models when doing it indoors.) It just gets too damn hot and muggy for anything to work right out of a rattlecan. Either it goes on dusty, or never cures.

The only time outside priming works is during late spring or early fall, so during the summer and winter months I only work on skirmish-level stuff (so things like a Shadespire warband, or a terrain piece, or a couple of cars for Gaslands).