Bubbles Under Paint Again!
#41
Heel & Toe
Please let me share my experience. 20 + years ago I installed new stainless steel brake lines on my 64. (I've owned this car for 40 years). After installing the new brake line I put in silicone brake fluid. (big mistake). I had the car painted shortly after that. A few months go by and I notice the fluid level low, about 1/4 ". I add fluid and again experience the same problem. I could not find a leak. A few years go by and I begin to notice paint bubbles on the left front fender, then on the cowling. Long story short, the master cylinder rear seal was leaking. The fluid was wicking up the firewall up to the fender and cowling. I am still fighting this problem. I hope this helps someone.
#42
Those pinhole-sized "bubbles" were not in the car hood when I bought it in NOV. of 05, then started appearing after entering several car shows in the hot FL sun. No idea if the sun heat caused it, or engine compartment heat, or what. Problem is my original paint is so thin there's not much I can do except a new paint job....
I'm scared to try to wetsand them out cause of going through the paint...
#43
Le Mans Master
Please let me share my experience. 20 + years ago I installed new stainless steel brake lines on my 64. (I've owned this car for 40 years). After installing the new brake line I put in silicone brake fluid. (big mistake). I had the car painted shortly after that. A few months go by and I notice the fluid level low, about 1/4 ". I add fluid and again experience the same problem. I could not find a leak. A few years go by and I begin to notice paint bubbles on the left front fender, then on the cowling. Long story short, the master cylinder rear seal was leaking. The fluid was wicking up the firewall up to the fender and cowling. I am still fighting this problem. I hope this helps someone.
#45
Le Mans Master
No A/C.....
Those pinhole-sized "bubbles" were not in the car hood when I bought it in NOV. of 05, then started appearing after entering several car shows in the hot FL sun. No idea if the sun heat caused it, or engine compartment heat, or what. Problem is my original paint is so thin there's not much I can do except a new paint job....
I'm scared to try to wetsand them out cause of going through the paint...
Those pinhole-sized "bubbles" were not in the car hood when I bought it in NOV. of 05, then started appearing after entering several car shows in the hot FL sun. No idea if the sun heat caused it, or engine compartment heat, or what. Problem is my original paint is so thin there's not much I can do except a new paint job....
I'm scared to try to wetsand them out cause of going through the paint...
#46
Sorta on topic, hope its not a hijack. I"ve been looking for a 65-67 and have to say I am very leery of fresh paint cars for sale. Is there any way to be sure (75% for sure lets say) that the paint job is good? To tell the truth, after reading this and other threads like it, I am leaning more towards cars without fresh paint.
Mike
Mike
#47
Le Mans Master
Member Since: Mar 2005
Location: Rocklin California
Posts: 7,631
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Sorta on topic, hope its not a hijack. I"ve been looking for a 65-67 and have to say I am very leery of fresh paint cars for sale. Is there any way to be sure (75% for sure lets say) that the paint job is good? To tell the truth, after reading this and other threads like it, I am leaning more towards cars without fresh paint.
Mike
Mike
#48
Mike Main
Purchased my black 2005 C6 coupe new. Two years ago I noticed paint blistering across the rear hatch just behind the window. Had the hatch stripped and repainted August 2015. Blistering returned last month. Took it back to the paint shop who repainted it and told me that the bonding agent in the fiberglass was leaching up through the glass layers, causing the paint to lift. Found another spot on driver's door. Looks like there is no cure for this problem and a repaint would be a wasted effort as the leaching activity in the laminating glue would continue and result in blistering in the new paint. Since this appears to be a systemic problem with Corvettes, where is GM on a cure? (Where is Ralph Nader?)
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corvetteed (03-12-2016)
#50
Safety Car
Purchased my black 2005 C6 coupe new. Two years ago I noticed paint blistering across the rear hatch just behind the window. Had the hatch stripped and repainted August 2015. Blistering returned last month. Took it back to the paint shop who repainted it and told me that the bonding agent in the fiberglass was leaching up through the glass layers, causing the paint to lift. Found another spot on driver's door. Looks like there is no cure for this problem and a repaint would be a wasted effort as the leaching activity in the laminating glue would continue and result in blistering in the new paint. Since this appears to be a systemic problem with Corvettes, where is GM on a cure? (Where is Ralph Nader?)
#51
Race Director
I encounter this issue from time to time on some Corvettes that come into my shop. I KNOW it SUCKS..but honestly...how long do you think GM should cover paint and body work????
And if a car is covered...don't you think that that can effect paint issues??? And I do not care about the cover 'saying' that it is BREATHABLE...which is a JOKE. Just 'saying'.
This should let everybody know that SMC is porous....and is NOT like steel or urethane.
DUB
And if a car is covered...don't you think that that can effect paint issues??? And I do not care about the cover 'saying' that it is BREATHABLE...which is a JOKE. Just 'saying'.
This should let everybody know that SMC is porous....and is NOT like steel or urethane.
DUB
#52
Brake fluid and other things will do it , when it is stripped put a halogen lamp on it about 6 inches away and you will begin to see wet spots then just keep wiping it till no more wet spots, my 65 had this in the drivers fender grill area and emblem area and it took maybe 50 plus hours to get it all out the glass gets to 200-300 plus degrees or more. The hot sun wouldn't bring it out, yours sounds like it is as bad as mine. PM me if you want to talk about it.
#53
Safety Car
Brake fluid and other things will do it , when it is stripped put a halogen lamp on it about 6 inches away and you will begin to see wet spots then just keep wiping it till no more wet spots, my 65 had this in the drivers fender grill area and emblem area and it took maybe 50 plus hours to get it all out the glass gets to 200-300 plus degrees or more. The hot sun wouldn't bring it out, yours sounds like it is as bad as mine. PM me if you want to talk about it.
#54
Yes you are right I should have mentioned before I stripped my 65 it also had the original paint and it was getting the wet spots but no bubbles so I'm guessing that the original paint was so cured that it was going right through the paint and then when repainted it was going to the paint and causing the pimples, good info