Letter 40052

Avoiding orange peel in clear coat [Oregon] 

March 23, 2006

WHEN SPRAYING CLEAR COAT ON A SECOND COAT APPLICATION SOMETIMES IT WILL COME OUT WITH ORANGE PEEL TEXTURE ON A FLAT PANEL AND SMOOTH ON ROUNDER PARTS. HOW CAN I GET THAT SMOOTH GLASS FINNISH ON THE FLAT PART? DOES IT DEPEND ON THE BASE APPLIED OVER OR POSIBLY THE VOLTS OR POWDER PRESSURE?

JON WILBER MASLEN
POWDERCOATING - HILLSBORO, OR, UNITED STATES


March 28, 2006

All of the above, clear powder is difficult to apply, you didn't mention the mechanical properties of the clear, or the type of oven you use to cure(IR/convection) which can also cause problems. Keeping very tight controls of your process is probably the best answer, you did say that "sometimes" the paint comes out orange peel, thats indicative of a loose process.

Sheldon Taylor
   supply chain electronics
Wake Forest, No. Carolina


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