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MP&C · 10-10-2018, 04:33 PM

Solvent pop doesn't typically buff out "cleanly" as there will be varying depths of the solvent bubbles. It also normally shows up in the first 24 hours but that doesn't mean it won't appear after some time in the hot sun. Was the defect the second time around little craters or did it look like small circles of delamination? May be a reaction of the epoxy to a rust conversion application that wasn't neutralized properly...

If they are using a desiccant dryer on the air line in their booth, old desiccant can't break down and cause similar looking defects.

10-10-2018, 04:33 PM	#2
MP&C Registered User Join Date: Jan 2013 Location: Leonardtown, MD Posts: 1,633	Re: Contaminated metal?? Solvent pop doesn't typically buff out "cleanly" as there will be varying depths of the solvent bubbles. It also normally shows up in the first 24 hours but that doesn't mean it won't appear after some time in the hot sun. Was the defect the second time around little craters or did it look like small circles of delamination? May be a reaction of the epoxy to a rust conversion application that wasn't neutralized properly... If they are using a desiccant dryer on the air line in their booth, old desiccant can't break down and cause similar looking defects. __________________ Robert Last edited by MP&C; 10-10-2018 at 04:40 PM.