Bubbles appearing after recent paint

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Jul 15, 2019 | 08:11 PM

Steve Early

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5th Gear

Joined: Jul 2019

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Bubbles appearing after recent paint

I really need some input from the members.I had body work and paint done to my 84 about 3 months ago.Since then I have had to take it back twice and now it is going to be a third time due to bubbles appearing on the paint.Is the problem a chemical reaction to filler and paint,does something have to be done before painting it or is it the preparation before painting?Is there something special that has to be done to prepare fiberglass for painting.
Thanks in advance for any comments.

Jul 15, 2019 | 08:39 PM

Patsgarage

Team Owner

Joined: Dec 2012

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From: Outside the Quick Stop N.J.

It sounds like bad prepwork. There is a reason why these cars are so expensive to paint properly, the cost exceeds the value of the car.

Jul 15, 2019 | 08:39 PM

Joe C

Race Director

Joined: Aug 2000

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Quote:

Originally Posted by Steve Early

well some sort of reaction is going on. without seeing pictures of the actual finish, it's hard to say what's going on. are they actual bubbles? there is a reaction called "solvent pop" where as, there was insufficient flash time between coats. solvent trapped in the paint or clear, works it way to the top and "pops." for the most part, they tend to look like microscopic craters in the top coat and not bubbles. I would think actual bubbles are caused from gassing or a reaction from dissimilar products. post the question over on the paint/body forum - address forum member "DUB" - 35 years in corvette body and paint - pretty sure he's seen it all -

Jul 15, 2019 | 09:40 PM

FAUEE

Race Director

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From: Melbourne, FL

A lot of the time that's the result of insufficient cure time for the primer.

Jul 15, 2019 | 10:22 PM

Kevova

Le Mans Master

Joined: Sep 2013

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From: near the thumb in the mitten

Really should post in body and paint. I wouldn't be surprised to have to strip, seal, and repaint.

Jul 16, 2019 | 11:11 PM

jv9999

Melting Slicks

Joined: Jan 2014

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From: Lunenburg MA

I wonder if they used a chemical stripper. That's a big problem on SMC cars. It will keep popping up for years.

Jul 20, 2019 | 05:46 PM

gottabekidding

Instructor

Joined: Nov 2018

Posts: 161

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From: Tickfaw, Louisiana

i had bubbles appear on a new paint job 6 months after.
found out it was the detailer using the wrong chemicals causing a reaction to the clear/paint that was used.
when the car was buffed out

could this be happening to yours?
i dont know, but dont rule it out

Jul 20, 2019 | 10:42 PM

85WHITEZ51

Drifting

Joined: Dec 2000

Posts: 1,785

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From: Leander TX

Was there fiberglass work done? If so, they painted before it fully cured. Very common with shops that aren't used to working with fiberglass cars.

If not, then either painted to fast or chemical reaction. I doubt the last one as any shop worth anything used the same brand products for all steps to prevent reactions and get best finish.