temp and time
Times vary depending on temp and size and chemistry. I go simply on surface temp of part.Remember you will get better results with the lower temps and longer times, this keeps the powder in it's liquid state longer and allows for more flow out and less orange peel.Too high of a temp and the powder cures before it has time to flow out fully. Always preheat, this causes the oven to heat soak and the temps become more stable.Turning the oven off and allowing to cool slowly helps keep the finish from hazing over, if this does happen alot of the time you can take a clean dry rag and lightly rub it out to remove haze. This happens mainly with polyester powder.Most all types of powder will begin to flow at about 300F. As a general rule increase time in oven by 5 min for every 25F decrease in temp. These are surface temp readings.10min at 400F , 15min at 375, 20 min at 350, 25 min at 325, 30 min at 300. The oven style can change these slightly. Multiple layer coatings are different.
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