Hi all,

I'm confident it will be moisture related. You can't necessarily rule out moisture being a problem because you have another type of coating that works fine; different chemicals react differently. I find polyester based coatings are especially sensitive to moisture. Hazy coatings are generally always a sign of humidity being too high for spraying, what is the humidity at the moment where you are? Also don't rule out moisture in the lines, I've gone through 3 different brands of filters before I found one that worked, and that's with a water trap in the line. Gotta empty the water trap every time before spraying, compressed air results in a fair bit of condensation.