Jun 10, 2016 0 comment

“I recently powdercoated some folded 16-gauge sheet metal using RAL colors. The pieces came back from the powder coating shop deformed. They were precisely bent to be used for furniture and had to be “brought back” into shape during assembly. Needless to say they did not return to the required shape. Is this type of deformation common in powder coating steel sheet metal? Is it caused by the heat during the baking process?”

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“Normally 16-gauge steel would be unaffected by the powder coating process. Cure temperatures are under 500 degrees F (usually 300 to 450 degrees F).
Steel deformation would not occur until temperatures reach 1000+ degrees F. Most likely your parts were hung improperly or mishandled by your custom coater.�Ask them to be more careful in the future.”

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