I'm spraying a customer fan shroud in wet black. It was heavily coated in primer when he gave it to me. Spent and hour or 3 sandblasting and shot away. It came out beautiful, smoothest I've ever sprayed before!. But there must have been a few spots with embbedded primer and they release some bubbles on the surface.
I orginally shot the piece brought it up to 320 for 5 minutes to flow out smooth. Then turned up the oven to 400. Checked the temp a few min later and thats when I saw the flaws. Pulled it out and let it cool. I sanded the spots with 400 grit on a DA. Wiped with whole thing down with PRE and popped it back in the oven for full cure. Then everywhere I sanded turned to a wrinkle finish, and the parts I didn't sand reflowed and are orange peeled like a somabitch. I fully cured at this point 10 Min at 400.
I resanded the wrinkle finish and the heavy orange peel, ready to shoot I suppose. Am I safe to reshoot or is this a case of restrip and start over?
Do I need to scuff up any areas that wern't affected by these issues? And why would it turn wrinkly?
Thanks for the help
Rob

I orginally shot the piece brought it up to 320 for 5 minutes to flow out smooth. Then turned up the oven to 400. Checked the temp a few min later and thats when I saw the flaws. Pulled it out and let it cool. I sanded the spots with 400 grit on a DA. Wiped with whole thing down with PRE and popped it back in the oven for full cure. Then everywhere I sanded turned to a wrinkle finish, and the parts I didn't sand reflowed and are orange peeled like a somabitch. I fully cured at this point 10 Min at 400.
I resanded the wrinkle finish and the heavy orange peel, ready to shoot I suppose. Am I safe to reshoot or is this a case of restrip and start over?
Do I need to scuff up any areas that wern't affected by these issues? And why would it turn wrinkly?
Thanks for the help
Rob
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