Paint failure what to do?

When I first bought My `64 Riviera, the previous owner had done all the bodywork and paint. I didn`t have the time to work on the car so I put a cover over it . When I got back to it, there were crazy pimples in the paint. I`m guessing that the topcoat was sprayed over primer that had gotten moisture entrapped and caused said blisters/pimples. I know the paint is not salvageable and I thinnk I know the answer but here goes, I am going to sand off all the paint as well as the primer, recoat with epoxy sealer,Slick Sand ,epoxy sealer,highbuild primer,finish coat. I just don`t see any easier way to get rid of the previous problem .

 

Is the Paint soft ? can you mark it with a finger nail?

 

The "pimples" could have been from the reducer escaping...not moisture. I think I'd just take off the paint, sand down to the primer since it's been sitting for a while, seal it with epoxy and then primer...then seal with epoxy one final time and paint. The epoxy sealer should take care of anything underneath.

R-

 

Sounds like one of Fooses tv specials, in by 9, out by 3. CUT!

 

The paint is not soft and the pimples showed up after the car had been covered.

 

I've seen cars do that when they were buried in snow for the winter. Pimples everywhere!
Oddly enough, once they dried out/warmed up in the sun for a bit the pimples all disappeared!
I KNOW there has to be damage to the paint adhesion at least...but if your a bit tight on cash or just not wanting to go with a full teardown of the car right now, you might get lucky if you just wait it out for a week or two. NO guarantees of course...

Eventually you'll most likely need to do a full strip of the finish...but it might not have to be right now!!!

 

examine how far the bubbles go into the paint.
I would just sand the paint down and seal/re shoot.

 

You are pretty much screwed the pimples in the paint r from the primer holding water, its probabally laquer primer, u will need to strip it to bare metal!

 

You are hooped. It will need to be stripped back to bare metal. Never use a tarp on a car. It will trap moisture and do exactly what has happened. Use only a breathable cover. Better yet, don't cover it. Dust washes off. My buddy just had this happen to his 67 Fairlane convert. I have done the body twice since 1980 for him. He had it in a damp barn with no ventilation. Pimpled everywhere. Another buddy tarped his 55 chev hardtop with the same results. Needed a complete redo. Pat.

 

I think the primer was applied to heavy and not allowed to dry between coats !! A lacquer primer as described by Davis574ord !! The primer being applied to quickly trapped solvents and these solvents are trying to find a way out creating these blisters / pimples !!! Strip to bare metal----apply a 2 part epoxy---allow drying between coats---apply topcoat of desired color----that is compatible with the epoxy primer used !!!! Lacquer primer is ****------ period !!!!!!!!!!!!

 

sounds like solvent pop to me!

 

Almost sounds like moisture in the primer, or perhaps some latent problem like a hotter-solvent paint sprayed over old enamel.

 

Any pic's?

If it's clear coat that was sprayed before the base cured (no flash time between coats) and it has out g***ed, you MAY be able to wet sand it with 1000 grit and re clear it and have it look presentable...

 

The original paint is Acrylic Lacquer in`64

 

Had this happen to me once fresh paint 1 year old black put a cover on the car for a while when i took it off the bubbles where all over it.itwas cause by the heat the car cover generated like a green house and nothing to do with the paint itself so maybe you had the same thing happen i now never put car covers on anything,i think they do more harm then good its better to let them air out instead of trapping moisture

 

Yeah, I had that happen to a car I did in nitro lacquer. THe car looked great for about 20 years, then the owner decided to store it outside for the winter, under a car cover, and the same thing happened. Lacquer's too fragile to abuse under a car cover for a long period of time.

 

are you sure it's the paint? it could be mold et... i'd wash it well and see if it can be rubbed out with a polishing wheel.

up a closeup pic....

 

If you want it done right, strip it to bare metal and start over (Epoxy, High Build, Block Sand for ever, Seal and BC/CC ).

Good luck.

VR&C.

 

X2 , and use the same paint manufacturer throughout the complete process. Then if you do have any problems , you can contact your local paint rep.

 

Whatever the cause, it`s going to bare metal. I just can`t chance putting all the time into a poor substrate. Thanks for all the info!

 

Good choice.

 

With you living on the west coast in the rainforest country, I would never tarp a car there. I lived there 28 years and had this happen to me as well. I have seen this lots of times in the Vancouver area. No tarps. Traps moisture. Need to strip it. Pat.