Well learning paint lessons as I go, yesterday i wanted to shoot some epoxy primer on my door exteriors. It was in the low 80's for temps and i thought my reducer was good up to about 90 so I thought i was good to go. I mixed up about 20oz of paint and added an extra 10% reducer because i wanted to make sure it layed down smooth and flat. Got the gun set and started spaying, it was going very good, looking just right. About the time i was finishing the first load in the gun I noticed it wasn't laying down quite as smooth. Reloaded the gun with what I had mixed up and it was spraying globs. It was flashing off faster than i could spray it. Guess I should invest in sand paper stock, big mess to clean up. After i finished I pulled out the data sheet and it didn't say it was good to 90 it said 84 degrees was the limit, warm air out of the compressor, on top of very close temps didn't work. Hate do overs.