Nicodemus Doloroso Posted October 18, 2013 Share Posted October 18, 2013 I've read never to undercoat or otherwise spray models when it's high humidity outside. Unfortunately it's frequently humid where I live and especially this time of year. I have some models I really want to prime and start painting but have been holding off for over a week now. Today it's 10.6°C (51.08 F) with 74% humidity. I usually try to hold-off for under 50% but I'm getting impatient. What do you guys think? Am I safe to spray, or keep waiting? Link to comment https://bolterandchainsword.com/topic/282112-max-relative-humidity-for-sprayingpriming/ Share on other sites More sharing options...
Major_Gilbear Posted October 18, 2013 Share Posted October 18, 2013 As long as you're somewhere sheltered, that seems reasonable to me... I hate to say it, but it also depends on what paint you're spraying. I use automotive primer here in the UK, under the conditions you list, and spray just inside a bin-cupboard in our block (the rubbish catches the overspray, and it's well ventilated but obviously sheltered) - and I have no issues. Oh, one last thing: try to avoid using the last 20% of a can on miniatures, as they often fur. Save the dregs for bases and terrain! ;) Link to comment https://bolterandchainsword.com/topic/282112-max-relative-humidity-for-sprayingpriming/#findComment-3499465 Share on other sites More sharing options...
Gurth Posted October 18, 2013 Share Posted October 18, 2013 The only time I'd be wary of the weather is when spraying varnish, and in that case all you need to do is spray a little bit to test it, and if that comes out fine you can spray your models. For any other kind of paint, the main thing I care about is if it's raining or not, and that's only because I have to carry the models a few metres outside to the shed to spray them FWIW, I put matt varnish onto half a dozen or so BattleTech models today when it was about 13 degrees and foggy — no problems whatsoever. So as I already mentioned, my advice is to just do a little test spray on some scrap material, and if you see nothing out of the ordinary, put the paint onto the model. Link to comment https://bolterandchainsword.com/topic/282112-max-relative-humidity-for-sprayingpriming/#findComment-3499628 Share on other sites More sharing options...
Nicodemus Doloroso Posted October 19, 2013 Author Share Posted October 19, 2013 Cheers, brothers! Link to comment https://bolterandchainsword.com/topic/282112-max-relative-humidity-for-sprayingpriming/#findComment-3500072 Share on other sites More sharing options...
Kaedes Nex Posted October 19, 2013 Share Posted October 19, 2013 Army Painter is very tolerant of humidity due to the nature of its cans and quick-drying formula. However, it means you have to relearn how to spray them and many users who are used to normal types of spraycans usually mess up when using Army Painter like other brands. I've pushed 70% and 50-80 degrees Fahrenheit with AP without a problem, though I also prefer to wait for 40-50% humidity. Link to comment https://bolterandchainsword.com/topic/282112-max-relative-humidity-for-sprayingpriming/#findComment-3500247 Share on other sites More sharing options...
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