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TRGcoating -> RE: Powdercoating (7/17/2006 7:48:00 PM)
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Normal powders, if exposed to higher temps will start to prematurly break down, and dicolor. Yes you can cure a powder at 400F, which mosts are but if you keep it at that temp for too long the resins, and cross linkers will break down and the coating will fail in several ways. You can peak it up to 475F for short periods of time, but do it too often for too long and the powder WILL get destroyed. As far as high temp powders, i know they are availible, but they are a special class of powder and as i state NORMAL powders can go to this temp. High temp powders are usually silicone based, and while can take high temps, are limited in color to essentially flat blacks and flat silvers.
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