Jon's 4th build: SSCM-1E

[jonwhitear]

More progress on this, even if it is two steps forward, and very nearly two steps back. I have the binding scraped well enough, so I've moved onto the clear coat. Unfortunately the lacquer went on very powdery yesterday, presumably because it was too warm (mid 20s?) so I've given that a light sand back. Is there a way to deal with warmer temperatures, i.e. can I just think the lacquer more?

[McCreed]

More progress on this, even if it is two steps forward, and very nearly two steps back. I have the binding scraped well enough, so I've moved onto the clear coat. Unfortunately the lacquer went on very powdery yesterday, presumably because it was too warm (mid 20s?) so I've given that a light sand back. Is there a way to deal with warmer temperatures, i.e. can I just think the lacquer more?

IME, mid-20's isn't too warm (unless it's also stupid humidity - in which the result would be cloudiness). Most lacquers I've used recommend between 18-25° C with max 50% humidity. I find 20-24° just about perfect with reasonably low humidity.
I would suggest (with a disclaimer that I am NOT an expert spray painter here) that your fluid flow is too low, or your air mix is too high. Maybe a more experienced sprayer will have better input.