Moparts
Another Paint Problem
Posted By: cbusters
Another Paint Problem - 06/10/12 08:03 PM
I had a few 69 Roadrunners in the late seventies, and they all had original paint. They were daily drivers, street racers, toys. I remember you could lay tools and parts on the fenders without the fear of a scratch. The paint seemed to be indestructible. I have had two recent paint jobs on a 69 RR project from different shops. The paint is so soft, you can dent it with your fingernail. Chips fall off with barely a bump. When you install a bolt, the paint rolls up. These are both two stage Rallye Green paint jobs, and there is a lot of metal flake in it. How can a HARD paint job be done. There has to be a better way.
Even the Krylon used on some of the hardware stays soft.
Posted By: Mr D21
Re: Another Paint Problem - 06/10/12 08:18 PM
Im not a expert, but I believe original paint cars were done in Acrylic Enamel, modern paint jobs are a base coat plus a clear... I think that makes a big difference...
Posted By: 1BAD68
Re: Another Paint Problem - 06/10/12 09:07 PM
if you can dent it with your fingernail, it's not cured yet.
Don't know why but I know most all 2 stage paints are acrylic urethane and much tougher than the old acrylic enamel.
Posted By: cbusters
Re: Another Paint Problem - 06/11/12 02:38 AM
The two current paint job were both base coat and clear. Is there any way to still do enamel?
Posted By: 1_WILD_RT
Re: Another Paint Problem - 06/11/12 02:44 AM
Quote:
if you can dent it with your fingernail, it's not cured yet.
Don't know why but I know most all 2 stage paints are acrylic urethane and much tougher than the old acrylic enamel.
That's what keeps being said but then again saying it doesn't make it so.... 
How long ago has it been painted? I'd advise to let it sit for a month or two and let the paint cure
Posted By: A57_RT
Re: Another Paint Problem - 06/11/12 12:19 PM
Just wondering, is it possible your confusing to soft with to hard?
Ive had that problem on a modern base/clear that acted soft but in reality was brittle and just as frustrating if indeed yours is soft.....hmmm.
I ask brittle vs soft as long ago I had a soft paint job that you could leave a fingernail mark in it and a day in the sun it was smooth again.
I shot my charger 500 two weeks ago with old school enamel, even got the classic orange peal in the right spots, its gotta sit another month at least.
One last thought, were either paint jobs heated in a booth after the paintwork?
Posted By: cbusters
Re: Another Paint Problem - 06/11/12 01:21 PM
The paint is over two months old.
It was not heated after paint, either time.
When there is damage it is almost like the paint is waiting for a place to start peeling and a mild bump with a tool lifts a chunk of paint.
Both paint jobs were done by different shops.
Current paint is Dupont.
Both of the new paint jobs are just very "Sensitive" to anything. Kind of reminds me of a person on blood thinners, the slightest bump and they bleed.
Posted By: Commando1
Re: Another Paint Problem - 06/11/12 01:34 PM
I blame the gummint.
Can't use this anymore...
Can't use that anymore...
That's illegal now...
This is banned now...
Posted By: 1BAD68
Re: Another Paint Problem - 06/11/12 01:53 PM
Just a thought, I've read that waterborne paints take longer to cure than solvent based.
Maybe they used waterborne paint?
Posted By: A57_RT
Re: Another Paint Problem - 06/11/12 02:15 PM
Hmmmm....My chipper paint is Dupont Chromabase, and while you have your crystal ball out you dead on the blood thinner comment, I go get my inr checked this am, coumadin keeps me alive but dam it stinks to be on it.
But seriously, sorry about your paint problems, ive been lucky in the way that any chipped area was an easy touch up and somthing bolted over it, but it will make one cringe to see a chip in your fresh paint.
Current paint is Dupont.
Both of the new paint jobs are just very "Sensitive" to anything. Kind of reminds me of a person on blood thinners, the slightest bump and they bleed.
Posted By: 1_WILD_RT
Re: Another Paint Problem - 06/11/12 05:43 PM
Quote:
I blame the gummint.
Can't use this anymore...
Can't use that anymore...
That's illegal now...
This is banned now... [/quote
More true than most realize.... It's great to save the planet, but when the new product produces 50% less hazardous waste but the results are only 30% as effective your going backwards....
Posted By: edp
Re: Another Paint Problem - 06/12/12 04:30 PM
it could be many different issues, improper paint mixing, prep issues, temperature. I add a minor amt. (10% ish) of hardener to the base, that helps with chip resistance. Clears cure to different firmness's, some are harder then others when cured.
There are so many variables its hard to figure out whats up if your not the one who did the mixing, prep & spraying.
what did the shop that sprayed it for you say?
Posted By: cbusters
Re: Another Paint Problem - 06/13/12 04:07 AM
The reply is, "That is the way the new paints are". And the two shops didn't know each other.
Posted By: Mr D21
Re: Another Paint Problem - 06/13/12 04:58 AM
Acrylic Enamel is still available -
My 70 Challenger FC7 will be shot with it. My painter laughed a bit at first, since he hasnt used it since high school auto, but he is now looking forward to it.
Posted By: 1_WILD_RT
Re: Another Paint Problem - 06/13/12 05:21 AM
Quote:
Acrylic Enamel is still available -
My 70 Challenger FC7 will be shot with it. My painter laughed a bit at first, since he hasnt used it since high school auto, but he is now looking forward to it.
And your buying this where? I hope you've sourced the reducer & hardener too.. I prefer Acrylic Enamel but if your spraying it at a shop here in California you better hope C.A.R.B. doesn't randomly tour your shop for a couple months after you've sprayed it...
Posted By: cbusters
Re: Another Paint Problem - 06/13/12 11:36 AM
I have read somewhere that the components can be purchased outside of the US and brought in, and then it just has to be mixed. Apparently it can't be purchased in the States premixed, but separate is ok.
Posted By: Mr D21
Re: Another Paint Problem - 06/13/12 02:23 PM
You can buy the paint in Santa Cruz (Im sure its available in other counties as well), I havnt thought about the reducer or hardner, hopefully that's not a factor,,, Its being painted in the Bay Area - so please dont call CARB....
Posted By: edp
Re: Another Paint Problem - 06/13/12 06:01 PM
Quote:
"That is the way the new paints are".
thats a pretty shi**y answer, if thats the way modern paints are you could walk around town sticking fingernails into new cars & scratching the paint.
What did you pay for expectation wise & how much, what type & process of prep was done, what exact type of paint (you said "Dupont" - which one?) & materials was used, were the shops reputable, what kind of warranty was given. All questions I'd ask them directly & there not intended to point the finger at the shop necessarily rather investigate for answers & determine a cause so it can be repaired.
I'm not a professional painter but have shot a few things pretty well & have learned from my mistakes along the way. As with anything proper prep, process & correct materials are critical to a great result.
E
Posted By: Dans 68
Re: Another Paint Problem - 06/13/12 10:12 PM
Quote:
You can buy the paint in Santa Cruz (Im sure its available in other counties as well), I havnt thought about the reducer or hardner, hopefully that's not a factor,,, Its being painted in the Bay Area - so please dont call CARB....
P/M me the shop you found that will do this. I'd love to get QQ-1 on my Charger.... 
Dan
Posted By: cbusters
Re: Another Paint Problem - 06/14/12 01:46 AM
I have been working on a few other cars that were painted in my area, all by different shops. When we put screws through interior panels, the screws pull up the paint in the screw holes. The quality seems to be pretty much the same on all the cars. The last paint job on my car had a Nason label on it. The warranty is, "If there is a problem, I will fix it". It looks nice but I was expecting technology to have made the paint better than the original. Maybe the humidity here doesn't allow the paint to dry completely. It just doesn't seem to be a single painter with the problem.
Posted By: dan9
Re: Another Paint Problem - 06/19/12 06:47 PM
Chrysler and Ford used enamel paint back in the 60's. Either acrylic enamel or alkyd enamel. Few painters today have the skills to paint these types of finishes especially if they are metalic paints. Alkyd enamel was pretty tough after curing but took more skill to apply. I don't know if the factory baked them or not but my guess is they did. GM got a pretty tough finish in the 60's by heating their lacguer, I never tried that one.