Well, there is a happy ending to this...I fixed the problem and shout out to Serjik911 he was the one that figured it out because he had same problem!
I originally started out with a Turbine sprayer that maxed out at 9.5 PSI. It was adjustable the pressure and I could spray a beautiful finish at 6.5 PSI. All the turbine videos I saw showed them dial down the turbine to about 7PSI and got perfectly nice finish on clearcoat. The problem is that with my temperature at around 60-65 degrees the clear coat is going on to thick or the PSI from the turbine was not enough to get rid of whatever solvents are in the clear. The parts were curing and trapping those solvents.
I abandoned the turbine system and went with a Quiet Air Compressor and low pressure, low air consumption HVLP gun the Iwata LPH80. They recommend you spray at 7 to 14 PSI. When I spray at 14psi I would get orange peel. When I sprayed at 20PSI I got a perfect finish but the clear was dieing back from trapping solvents. When I upped the pressure to 28-30 PSI, the solvents no longer show up as the clear cured.
When I sprayed at 30 PSI I was getting trash galore in the parts, that's when I discovered the Devilbiss QC3 I had was tampered with that I got on Amazon. I replaced it with a Sharpe Dryaire system and it solved the contamination.
Interestingly as I searched and searched this forum. I saw other people who said they had similar problems. I saw one person said he struggled with same problem and it went away when he got a new spray gun.
I am going to experiment around to find what pressure I can spray at and not get the trapped solvents. I battled this problem literally for years and spent fortune. Glad to finally have some closure. So if anyone is reading this and having similar problems , the answer is to crank up the PSI.
The new air desiccant system is ridiculous and huge compared to the QC3 lol but atleast I hope its a bullet proof system now.
Me either. I can count on one hand the times I've had solvent pop after many thousands of cars sprayed.None of that makes sense to me
None of that makes sense to me. I don't understand how it's possible to trap solvents in clear in a single coat. @Barry could you explain this? I have never encountered this in my 30 years of spraying.
What will happen if you will spray clear with your sata at around 16 psi? I know you spray it around 30. And add poor air movement.Trying to remember the last time I had solvent pop (which is slightly different than trapping solids) and only time I can remember was iver 10 years or so ago and I was spraying a replacement front clip of a Freightliner in 100+ degree temps and using some very crappy Transtar Euro Clear. (Painters that die and go to hell have to spend eternity using Transtar clears) It popped as soon as I was laying it down. Other than that I can't remember a time. Conditions you were painting in trapping solvents in the clear should not be possible especially if you were laying it down as slick as those pics make it appear. Just doesn't make sense.