Had a customer's new clear coat cloud up after a 90 degree day in Phoenix

I was finishing a full respray on a 2018 F-150, using a mid-grade clear I've trusted for years, and left it to cure overnight in the booth. The next morning, the whole hood had a milky haze that wouldn't buff out. I had to sand it all back down and re-spray, which ate up a full day of labor I couldn't charge for. Has anyone else had a clear fail like that from heat alone, and what brand did you switch to?

2 comments

2 Comments

shah.ben4d ago

Check the humidity in your booth, not just the heat. That milky haze is usually moisture trapped under the clear from high humidity overnight. A good dehumidifier in the shop makes a bigger difference than switching brands.

emery_craig4d ago

Clear can blush from heat if it cures too fast before the solvents fully escape. Try slowing down the flash-off time between coats on extreme heat days, even if it means waiting longer. A slower activator might help more than a whole new product line.