EPIC FAIL! paint pro's help needed

[dirtywhiteboy]

Here are a few shots of a garage paint job. I painted the hood and fenders in the same place with the same steps (barring a brain cramp) a few weeks ago. The hood and fenders look fine, but both quarters and some of the roof show this even,very fine metallic sized junk in the clear. I have no idea what it is or where it came from. I just installed a new water separator and was using a new (generic hvlp) gun. At this point I will be re-shooting the quarters, so I did some extra sanding to verify that it just seemed to be in the clear. Can this just be dust?!?!? could it have come from the filter. I just want to avoid this from happening again if possible.


ANY ideas are appreciated.

thanks for your time

Brian

 

[85 Cutlass Brougham]

Did it appear after sanding the clear or before? If before, it could be some dust that was in the clear. Did you filter the clear thought a strainer before you put it in the gun? Also, is the HVLP gun a gravity feed, and if so, did you disassemble it to clean it before pouring in the clear?

 

[dirtywhiteboy]

If you look close it seems to be there it shows a lot more after sanding. it is a gravity feed gun not disassembled between the black and clr, although this was the first use of this gun i did run a few ounces of mek through it before putting the black in it. the paint and clear was strained through 2 ea strainers with no residue showing in the filter.

 

[pontiacgp]

to me it looks like the clear was contaminated with something.....did you have a filtered intake fan for fresh air and an exhaust fan set up? Also it is a good idea to wet down the garage floor and walls if the walls are not covered to stop any dust entering the air....

nice thing about doing a paint job by yourself you'll learn what your doing and you can probably paint the car 3 times before you'd pay for a paint shop to do it.....once you really feel comfortable with painting a car if you can't get the finish you want in your garage there are probably shops around that will rent you a bay for a nite...

 

[dirtywhiteboy]

paint was filtered, no residue when I cleaned the gun. garage floor was wet and garage sealed while the paint was wet, except when I left out the service door for flash time...upon further checking when I apply wax remover to a sanded area and look very close with a light it appears to be tiny holes. I think it's referred to as solvent pops......now why this time and not last???

 

[pontiacgp]

did you mix the clear correctly before you sprayed and with the correct components?

one nice thing about clear is you can sand it down and do it over until you get it right...

 

[dirtywhiteboy]

did you mix the clear correctly before you sprayed and with the correct components?

one nice thing about clear is you can sand it down and do it over until you get it right...

I think I did but I can't swear to anything...looks like I have to redo the black too right....otherwise these pops will still show!

 

[pontiacgp]

are the "pops" in the base coat? The hardest part of a paint job other than getting the body straight is to clean the body and to keep it clean and dry and free of contaminants before painting.

If you can get some good shots of the problem areas head back to the supply store where you bought the paint. They usually have a guy who has seen every problem under the sun and can give you some help on solving it..

 

[n8dogg]

base won't solvent pop unless you put the clear on before the base was flashed or contaminated. In the pics, it looks like contamination to me.
You should prime the spots of the trouble before you top coat again.

Also sometimes if your spraying in a not to great ventilated area the overspray will settle on your final coat and leave a rough overspray looking finish on the panel/spots.

If I was there I could tell you in 10 seconds but it's a lot harder to tell from pictures.

 

[platinum performance]

was it cold that night?did you leave your car in the garage overnight to dry and it was cold,thats what i meant to ask.