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-   -   Multiple coats/too much paint (http://www.hotrodders.com/forum/multiple-coats-too-much-paint-44145.html)

345coupe 07-25-2004 07:50 AM

Multiple coats/too much paint
 
Ok, I'll be the first to admit when my information is wrong. There is another thread going about too much paint on a car. Since I didn't want to "hijack" the thread, I started a new one. The previous thread dealt with a car that was painted three times BC/CC. That makes six layers. Many people said that is way too much paint. How can guys get away with laying down 10, 15, or even 20 or more coats of base before a clear coat and not have the problems mentioned in the other thread?:confused:

Thanks.

crazy larry 07-25-2004 08:21 AM

Re: Multiple coats/too much paint
 
the only difference i can see is that in the other thread, it's 'all ready on the car' paint,(no telling what kind of paint it is/was) where as the guy your talking about is using (hopefully) the same system, on close to bare metal, thereby making the extra layers compatible with each other.

I don't know if that helped or just muddied the water more. but i understand what you were saying.

troy-curt 07-25-2004 09:45 AM

More than 3-4 coats of base is a waste, unless it is some kind of translucent paint, then there should have been a colored sealer under it.

no one in there right mind would put 15 coats of base on a car. What good would it do?

Troy

__________________
If you don't make mistakes. your not doing anything.

69 ss rs full custom camaro 98 ISCA grandchampion
69 ss rs bb camaro wifes driver
66 Elcamino 350/all dz parts,ac,windows,loaded,my driver
69 ss chevelle bb conv.fresh frame off
26 T sedan street rod

crazy larry 07-25-2004 10:19 AM

Not 15 coats of base, but more like 3 coats of base, followed with 2 coats of clear, then 3-5 coats of kandy, then pearl, then clear, oh wait, shouldn't there be a coat of klear or two between the kandy and the pearl?

Troy, how many coats does your camaro have on it?

i put two of base, two of clear, two or three of pearl, and then two more of clear on the truck. that was on top of the primer and sealer...... next time, i'm going a little heavier on my base coat. live and learn, or, ''If you don't make mistakes. your not doing anything.''

troy-curt 07-25-2004 10:41 AM

It has a very thin (sanded) primer filler. A coat of tinted sealer,4 coats of base,3 coats of clear, color sanded and 3 more coats of clear.

Troy

__________________
If you don't make mistakes. your not doing anything.

69 ss rs full custom camaro 98 ISCA grandchampion
69 ss rs bb camaro wifes driver
66 Elcamino 350/all dz parts,ac,windows,loaded,my driver
69 ss chevelle bb conv.fresh frame off
26 T sedan street rod

345coupe 07-25-2004 11:31 AM

Thanks to all. I finally understand my confusion.

tresi 07-25-2004 02:01 PM

You need to keep in mind what type of paint is on the car. In the days when lacquer was popular it would not be un heard of for a car to 10 or more base coats and just as many coats of clear. Lacquer would orange peel like crazy and you would wet sand off as much as you left on the car.
With modern paints the base coat is very thin. The base coats plus the clear coat combined is about as thick as a single stage paint job. In my opinion if the factory paint is good shape it's ok put down an epoxy primer or sealer and repaint it. If the car has already been repainted it's best to sand it off before repainting.

Danny63 07-27-2004 10:19 PM

How many coats of paint is too much
 
It depends on the depth of color you want,shootin a Kany is a different story.

troy-curt 07-27-2004 10:41 PM

When shooting base coat, once you get you coverage, normally 3 coats, the depth of color will not change. You get depth with the clear.

Troy

__________________
If you don't make mistakes. your not doing anything.

69 ss rs full custom camaro 98 ISCA grandchampion
69 ss rs bb camaro wifes driver
66 Elcamino 350/all dz parts,ac,windows,loaded,my driver
69 ss chevelle bb conv.fresh frame off
26 T sedan street rod

cunGunit 07-28-2004 01:23 PM

i was watching some car show on tv yesterday, and some guy said he had "32 coats of paint, 16 base and 16 clear" i was like wtf?

troy-curt 07-28-2004 01:46 PM

And I think he is a little windy.

Troy

__________________
If you don't make mistakes. your not doing anything.

69 ss rs full custom camaro 98 ISCA grandchampion
69 ss rs bb camaro wifes driver
66 Elcamino 350/all dz parts,ac,windows,loaded,my driver
69 ss chevelle bb conv.fresh frame off
26 T sedan street rod

flyfisher 07-28-2004 03:38 PM

I have a booth and paint a few times a year with a few different types of paints.

Laquer can be painted in many layers and is usually buffed or sanded between coats. It's an old style of paint and the paints of today are much more durable and give a better finish with less work in my humble opinion.

Acrylic Enamel or Base Clear are not usually painted in more than two or three coats because the paint will become brittle and crack the thicker it gets. Also, the drying time needed between coats as the layers increase would make a 16 coat paint job about a year long. The reducer needs time to come out of the paint. The top layer usually dries first making it difficult for the chemicals close to the metal to cure and evaporate. I can't tell you how many times I've ruined a paint job just by leaving it out in the sun too soon after painting. The radiant heat causes the reducer trapped under the top layer of clear to try and evaporate. As it does it causes orange peel on the surface of the clear. Or at least so I was told by the tech guys at PPG and DuPont.

I don't paint for a living, but I've never heard of a 32 coat Isocyanite base/clear paint job. The most I've ever painted is three base, two tinted clear, and two clear. Even with flexibilizer the clear cracked two years later on a plastic bumper in the winter. I can't imagine a 16 coat clear hanging let alone surviving.

2oldster 07-28-2004 03:45 PM

Troy

Sounds like you have some nice cars. I was already in the business long before all but the T were built. If I listed all the cars I've owned and driven the list would be well over 300 including a 200 + mph, street driven 69 SuperBee............. the Bee went when my ex wife spun it out on ice at 90 and backed it into a ditch with my daughter in the car. Traded it off the next day for something a lot tamer.

31"A"bones 07-28-2004 07:45 PM

Thick Paint???
 
I have heard of Rolls Royce, Maserati and Mercedes vehicles having 32 coats or better.

ButtWeldor 07-28-2004 09:27 PM

Coats of Paint
 
I live in Australia, and when I was a kiddy of great insight and renown, one of my many idiot brother in laws, to one of my half sisters (hurrah for crazy familes) - well he worked for Arnotts Biscuits as a big knob executive, and he was telling me that the big trucks had about 20 or 25 coats of paint... a primer, base and then a colored, then a clear, and then a colored, then a clear, and then a colored, then a clear etc.

And the trucks had a beautiful deep lusterous coat of paint., that looked really good.

They were works of art actually.....

But the company being run by backward Australians (Good little Vegemite sucking Aussies) - never thought to grow themselves, and they were taken over and the brand is now marketed into other countries around the asia pacific regeion....

But the trucks had really nice paint jobs..


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