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Chalking Paint and Clear Coat


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  #1  
Old 05-29-2015, 09:09:01 PM
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Craig A Craig A is offline
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Question Chalking Paint and Clear Coat

My '65 Mustang had a cheap paint job some time ago on which the Nevada sun was murder.
The "new" paint is a shade off from the original but I can live with that as a proper paint job would cost more than the car is worth.......
SO.......I contacted a nearby detailer who asked for photos to make an assessment.
The photos I sent are attached.
He said the only way to "fix" the chalking is to have the car clear coated again.
OK.....fine.....I can do that with spray cans of Rustoluem acrylic clear coat.
I'm thinking the detailer dude is correct because as long as the white areas are wet they disappear.
My question is will the clear coat mask the chalking?
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  #2  
Old 05-29-2015, 11:16:33 PM
Ed Sparks Ed Sparks is offline
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Default Re: Chalking Paint and Clear Coat

Craig: I'm thinking the loose clear coat will need to be wet sanded with 1200 + before trying to recoat it with anything. need to get a scratchcoat for new clear to stick to.
Whatever you put over it might cause the rest of it to lift off and make a heck of a mess.
I remember Chrysler having that issue in the early 90's with their clear coat paint jobs.
Usually only affected the "top surfaces" of hood ,roof & fenders
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Old 05-29-2015, 11:58:33 PM
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Default Re: Chalking Paint and Clear Coat

Thanks Ed.......so you think a new coat WILL make the chalking disappear?
I'm going to test a small area to see what happens.......the worst that can happen is the "new" paint lifts........
As you said it's only the top surfaces that have the problem.
If worst comes to worst I'll have to wipe it off with paint thinner.
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Old 05-30-2015, 09:52:18 AM
Ed Sparks Ed Sparks is offline
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Default Re: Chalking Paint and Clear Coat

it's not really chalking, it's more of a combination of the clear coat coming loose from the substrate paint and the sun light showing the fractured edges. over time it will all come loose and fly off.
Only cure is to wet sand it all down to base paint with 1200-1500 3M black paper and re-do the top coat. time consuming as all get out ,. Or you can take it to the local Vo- tech school and lets the kids do a strip job on the body to get it ready for new paint job.
friend had a barracuda that he took up to the Vo-tech class. The teacher was a long time body man and used his car to teach the students how to lead fill quarter panel seams. They did a great job on getting the body prepped and primed for paint. He then took it to a commercial shop for an imron paint job in metalflake blue.
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Old 05-30-2015, 10:27:13 AM
OrgWayne OrgWayne is offline
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Default Re: Chalking Paint and Clear Coat

Craig , my Daughter has a Saab , that has the same paint job you got !, so I was going to look into how to fix it, and Mister Ed has the answer , Thanks Ed
Every day a piece comes off here and there
Wayne
Craig is it near haying season there ?
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  #6  
Old 05-30-2015, 11:23:06 AM
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Default Re: Chalking Paint and Clear Coat

How Much do you want to spend and do you want a museum piece or a daily driver ?

If it was mine I would go to Home Depot and get a can of Penetrol. The same stuff you rub on old tractors. Wet a rag with the stuff and wipe it down, Try a test spot first.

If you don't like it you can use the rest on Old Tractors.
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Old 05-30-2015, 11:42:35 AM
Sir Thomas Sir Thomas is offline
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Default Re: Chalking Paint and Clear Coat

Talking about paint. I rebuilt small engines and when I can't I like to redo the paint job. I had a Till Smith Tiller with a Briggs and Stratton 5 horse horizontal shaft on it. I stripped it down to the bare metal, motor and tiller. Bought, what I was told, gas or oil resistant rattle can spray paint. The guy swore up and down it would do the job. It turned out beautiful (see attached) until the first splash of gas fell on it. Gas resistant my foot.
Now I have a small air compressor and will be getting a gravity feed paint spray gun. What paint it truly gas resistant. I know to get a factory like paint job is to do what they call powder paint. The paint is in a fine metallic powder form but I'd have to set up a magnetized spray box when you hang the part and attached clamps to it to magnetize the metal. The spary powder sticks to it then you bake it in a oven. I'd have to find a used oven and put a 220 line out in the shop (my wife wouldn't let me use our oven) then set up a box to spray it in.
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Old 05-30-2015, 11:44:53 AM
Sir Thomas Sir Thomas is offline
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Default Re: Chalking Paint and Clear Coat

Pix didn't attached
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  #9  
Old 05-30-2015, 01:37:53 PM
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Default Re: Chalking Paint and Clear Coat

Thanks everyone.......
I'm going do to a test spot with the rattle can clear coat anyway and see what happens.
As I said, if it doesn't pan out I can wipe it off in a jiffy with paint thinner.......I've done THAT before when a $%^&^$%# bug landed in wet paint and I had to remove everything I had just painted....... .......so it's not a big deal.
It's not that big a job to sand off the chalking........I have a buffing pad too so I can speed up that process and save my shoulders somewhat.
Ken......driver only.......no way I would own a car that I can't park anywhere I want without having to worry about a ding.
Cars are supposed to be FUN.......not trailer queens nobody can touch.......
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Old 05-30-2015, 06:15:12 PM
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Default Re: Chalking Paint and Clear Coat

OK........tried buffing with some rubbing compound, some light sanding and giving the area a shot of Krylon Crystal Clear Acrylic gloss clear coat........no go.
I tried a spot on the top with light sanding only and shot it with clear coat.
That works well enough for me.
You'll see the difference in the photos.
So YAY........I get to do it the hard way.......
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Old 05-30-2015, 07:21:40 PM
gdstew gdstew is offline
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Default Re: Chalking Paint and Clear Coat

Advance Auto and AutoZone have paint in quart cans called "Dupli Color". (I'm sure other store do to). Paint, air compressor, and a $20 gun from Harbor Freight, and you could get a real decent paint job. You can read all about them on their website.
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Old 05-30-2015, 08:41:44 PM
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Default Re: Chalking Paint and Clear Coat

Yes gd......I could.
I painted the body on my T with Valspar spray can paint.



I DO have a spray gun but the entire body would still have to be sanded to take off the gloss.

I just went to look at the test areas again and the test spot on trunk now is looking good too........
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Old 05-30-2015, 08:49:56 PM
Bob Willman Bob Willman is offline
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Default Re: Chalking Paint and Clear Coat

It has been my observation over the years that blue paint on any automobile is a recipe for disaster. Eventually the blue paint will come off. Make & model seem to make no difference. No scientific proof - just my opinion.

Bob
WB8NQW
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Old 05-30-2015, 09:13:26 PM
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Default Re: Chalking Paint and Clear Coat

LOL Bob........BLUE would NOT have been my choice........but the car was.
BTW......WELCOME to STAK........

Adding to my previous post a DECENT repaint would require doing the inner doors trunk and engine bay to make it look decent and there's no way I'm going through all that........
I'll clear coat the exterior and after a time take it to a professional detailer for a good waxing >>> http://totallyspotless.net/
Unless I have the car out and about it's under roof anyway so I should be set for a long LONG time........
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Old 05-31-2015, 07:04:32 AM
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Default Re: Chalking Paint and Clear Coat

Craig,
Krylon clear that you used will yellow out if left in the sun.
Don't ask
You mite wax it but don't buff it as it come rite off.
Again don't ask.
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Old 05-31-2015, 08:26:42 AM
Sir Thomas Sir Thomas is offline
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Default Re: Chalking Paint and Clear Coat

Have you tested an area by spilling gasoline on it? I was told that any petroleum based paint especially rattle can pain will come off with gasoline. I know you are not going to spill gas all over the body but around the fill for the gas tank would be a problem. I've used Duplicolor, Rustoleum (auto paint) and Rustoleum Professional.
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Old 05-31-2015, 02:25:15 PM
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Default Re: Chalking Paint and Clear Coat

Re;I remember Chrysler having that issue in the early 90's with their clear coat paint jobs.

Ya my 91 white Dodge, speeds over 25 I see the clear coat and paint just peel off and fly away, higher speed even worse!
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Old 05-31-2015, 04:47:27 PM
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Default Re: Chalking Paint and Clear Coat

The entire problem here is this was a CHEAP paint job.
I came to the conclusion it never WAS cleared.......only painted.
Once the clear coat cures I'll have it waxed and that's that.

Sir Thomas.......I tried everything under the sun and the ONLY thing that masked the chalking for any length of time was the Go-Jo with pumice.......CHERRY scented if you want to know........
That's the same stuff I used to brighten up some very dirty white tires that were on my first Model T and it worked great.
I also used it on my '59 Chev to shine up the oxided paint (lacquer) which brought back the original color nicely and has stayed that way since late last Summer.

Dale......as I said.......the only time the car will see sun is when I'm out zooming with it........

Edison........

I cleared the entire top side today and it made a world of difference!
The clear seems to made the lighter blue overcoat darker so it even "sort of" blends now and is much less noticable.

Time for a naproxen sodium now........
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Old 06-02-2015, 08:23:26 PM
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Default Re: Chalking Paint and Clear Coat

While I was at Mark's shop this morning (sort of morning....... ) a customer who was driving an '05 Chevy Cavalier stopped in.
The first thing I noticed was an identical chalking problem on the top surfaces of his car.......even worse than mine.......
So now I'm not sure if the Mustang HAD a topcoat or not.......
At any rate Sunday evening I cleared it and today I cleared it again.
I can live with the results........sure beats a sea of white blotches!........ .......and the price is right.......
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