anyone ever had solvent issues?

[speedshftr]

my car has been painted for about 8 months.im having some bubbling in a few spots on the car.the body shop said they think it may be a solvent issue.they said they will repair whatever it needs and if they have to repaint the entire car.im sick to my stomach.i just got it back together and cant believe it may have to come apart again.the body work on the car sat for a few months to shrink before we painted it.anyone else have or had any thing like this happen to them?ill get pics tomorrow.my paint is ppg

[67zo6Camaro]

"Most paint venders will encourage you to use their system because of the chemistry of the products being able to work together. Most paint books will confirm this. However, Im sure some painters will confirm you can mix and match brands some, but that is because they have learned by trial and error. Here comes the key word, are you willing to encounter an error during your final paint and/or after your paint starts to cure? The main idea is to play it safe when it comes to paint chemicals. The reason behind this is that even epoxy primers are bleeding off solvents well after the initial curing, and this bleeding of solvents could cause a paint problem down the road (a few months into the curing process)." this is from the recent "epoxy primer advice" thread posted this week.

It will be difficult to determind which stage of your paint job is having conflicting chemical issues, unless you know for sure which products were sprayed and how they were sprayed. It's possible your having conflicts with products or your painter just did not follow the mixing rules. Solvent issues take time to settle down and harden completely. It's possible you may have to wait longer or just do a repaint.

Good luck.

Thats my 3 cents
Brett

[Kevin Campbell]

How big are the bubbles? are they in all over or just certain spots like the sides or tops. Pictures will help.

[elitecustombody]

I'd have to disagree with Bret, if there were conflicting chemicals, you'd see the problem within minutes of application and no later than few days, unless it's adhesion issues,because those can hide for long time and won't show until the paint is chipped and exposed to regular use ,i.e water,air .

To me it sounds like you have moisture trapped ,which was in your air supply ,

If you have thoroughly agitated/mixed paint, clear and primers, the solvent issues will usually cause a die-back, dulling or solvent-pop, which usually occurs within hours or days. But at this point it will be difficult to determine if the materials were well agitated prior the application . I'd have to say that most likely you have moisture trapped and it's finally making it's way out.

Have you noticed if the bubbling worsens when it's humid,cold or raining. Do they change slightly when it's dry and warm ?

[speedshftr]

the car has been in the garage since painting .ive had it out in the hot sun this past summer.it just is starting to get cold here.elite im not sure if it changes with weather.ill get some pics up asap.i was so busy today i never made it to the garage.

[BlindSideCustoms]

Your paint is made up of layers and I don't care if you have 1k dollars in base/clear if you use the wrong primer underneath it, dont prep it right or have contaminants in between one of the layers it can have a problem binding to the surface. If a primer or sealer reacts to the reducer in your base this can occur.

I did what was supposed to be a re-spray over a customer's bike and it had been painted previously. Even my primer made the paint underneath this thing lift up! spots the size of a dime in some places. That 2 day $500 job turned into me sanding/priming/sealing/painting/sanding/priming/sanding/priming/sanding/sealing/painting/clearing that thing haha it was a week from hell. eventually i had to use a 1k nasons primer in a can to finish it off and make a sealed off layer so that anything would stick and not bubble up.

If it is just a normal solvent issue of "solvent pops" which are medium sized pin holes which can be created by a solvent that hasnt dried being overcoated and as the solvent tries to rise it lifts up through the paint/clear and creates a hole where it came from. Working at a donk shop I experienced this often due to cheap paints/clears.

[justasquid]

the body work on the car sat for a few months to shrink before we painted it

This could be the issue in itself. The car does not need months to shrink. Most long setting primers fully shrink within a week, and a lot of modern primers will be fully set after a few days. The problem with those months is the primer will actually absorb the moisture in the air. Depending on where the car was kept, it could have gotten a lot of moisture, then painted over.

I agree with elitecustombody that it is probably not a solvent issue, its probably trapped moisture. Basically, your getting the moisture coming out from the primer and delaminating the paint from the primer, creating the bubble.

If the car is going back to the shop anyway, take a small needle and poke the bubble. I would bet money water comes out.

[JRouche]

All solvent based issues with incompatible paints will show up almost immediately while spraying if not within a few (24) hours. Long term bubbles are usually adherence issues. Crap in the paint, cleaners left on the primer, dust on the body, stuff like that, there are a large assortment of causes for 8 month bubbles. But its always debris in one form or another. JR

[ckessel]

Did they use PPG products on the car? I know there has been an ongoing problem with their clear "solvent popping" It looks like acne or tiny little craters in the finish. Some of their clears can only be used on spot jobs because of how the dry and your time between coats. You might want to get in touch with the paint manufacture rep on this.

[Satatic]

Had that happen with my hood. Only difference between my hood and everything else is that it was painted out of the recoat window. It was good enough that I thought a simple 400 grit sanding would be sufficient. Nope. The window was closed. No craters, looks like small raised circles. Looks exactly like the bug pee you get from trees.