I sprayed my cowl, firewall, and frame rails from the firewall forward last night. If I was lucky the humidity was only 90%. I knew I’d have a good chance of spraying in not the best conditions (humidity) so I gave it a longer induction (12+ hours) and sprayed straight with no reducers. I think dragging reducers into the mix only complicates things with high humidity.
The biggest issue I could see is if you’re shooting it as an only/top coat in a visible area, doing it in bits and pieces, and the humidity is all over the place each time you shoot a piece. Your finished gloss/sheen levels on all the finished parts might not match.
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