Quote:
|
Originally Posted by SheCoats
Thanks for the comments and the welcome Pickleboy.
Manufactures data sheet calls for the 10 minutes @ 400F. Sprayed a few test panels today for DSC testing from powder manufacturer. Can't scratch the coating with a fingernail any more than with a towel. What about a clear coat over the black? Any potential delamination or clear discoloring issues to consider?
|
typically speaking if you have a full cure on the base coat then the clear should lay down nicely and cure with no problems. i generally hot shoot all my clears so as to see the gloss build as i go. i have not had a problem yet. as for discoloration that should not be an issue as long as the powder types are the same and the clear is not over cured. lastly when i do blacks i let them cure in the oven for the full cycle and then turn the oven off and crack the door and let them cool slowly. then when fully cooled i remove them and go straight to a coat of high grade wax. polish that up with a chamois or very old soft t shirt and no problems. some still have those micro scratches but that is a side effect of high gloss colors in general i feel.
wamontgomery the solvent test is done after a full cure cycle to test the finish. on a full cooled part using a soft cloth and acetone or mek on the cloth rub the finished part in the same spot for about 30-50(opinions vary on this) strokes. if the powder is properly cured it will not color bleed on the cloth and will not fade. if it does it was not fully cured.
hope this helps.