11-19-2014, 02:10 PM | #1 |
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Paint
Looking for a bit of advice, take a look at the pic of my paintwork, it`s pretty much like this over a lot of the car, worse in places,cracking and flaking. Any ideas on the cause, someone used wrong paint maybe ? I intend to repaint it black, not sure what to use, coach paint, cellulose, 2 pack ?
The car has only recently arrived here from Texas, i don`t have a history, prob. be quite a long one after 85 years http://www.fordbarn.com/forum/attach...1&d=1416423944
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11-19-2014, 02:14 PM | #2 |
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Re: Paint
That looks like lacquer that is cracking. Afraid you will probably have to strip it to stop what ever you put over it from reacting the same way.
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11-19-2014, 02:21 PM | #3 |
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Re: Paint
Use a single-edge razor blade and remove the paint layer by layer. (The paint will generally shatter in small shards as you scrape it off!) You will quickly see what is faulty. By that, if just the topcoat of paint is cracking and all the substrates are fine, you will know the issue was too thick. If the putty or primer is cracked but not any filler (i.e.: Bondo) again, you can tell where the problem originated.
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11-19-2014, 02:48 PM | #4 |
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Re: Paint
That is great information, Brent! (As usual.)
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11-20-2014, 04:42 AM | #5 |
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Re: Paint
Thanks, much appreciated ....
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11-20-2014, 05:12 PM | #6 |
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Re: Paint
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11-20-2014, 09:05 PM | #7 |
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Re: Paint
Looks like an old lacquer job to me.....when was it painted? Lacquer will soften in the hot sun and move at a different rate than the metal will. So you get two substrates moving and in the middle you get cracking, peeling and checking. Come on over and see mine I can show you the same paint failures in the cars I painted in the 60's.
Even if you figure out which layer failed I would still take it back down to bare metal and build from a good foundation. Only use 2 component products with single stage topcoats unless you like base/ Clear. Just make sure you use Urethane products I recommend PPG but others are very good also. |
11-20-2014, 10:38 PM | #8 |
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Re: Paint
Gotta love lacquer! There was a thread about how wonderful it is just a short time ago.
The 'isolator' referred to would be epoxy primer in this country; or waterborne primer
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11-21-2014, 12:49 AM | #9 |
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Re: Paint
tbird, The isolator is not a primer. The instructions say don't use it on bare metal. It is designed to give an inert layer between layers to prevent reaction. Spray painters often use it when they don't know what they have underneath. Its as good as starting with bare metal and has been around for MANY years.
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11-21-2014, 01:03 AM | #10 |
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Re: Paint
Old lacquer paint. Lovely . . . gives the car character. Leave it alone.
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11-21-2014, 08:05 AM | #11 |
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Re: Paint
can you give us a manufacturer of this 'isolator'. Just curious
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11-21-2014, 12:12 PM | #12 |
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Re: Paint
I believe the "isolator" is the Aussie term for what we would call sealer.
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11-21-2014, 04:04 PM | #13 |
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Re: Paint
gwhite - could be.
tbird - I don't have any on the shelf at the moment but I'll check it out as soon as I can. That said, there is absolutely no guarantee we share manufacturers.
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11-24-2014, 05:18 AM | #14 |
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Re: Paint
Since i started this post i have read more about paint and finishes than i have about anything else. I didn`t realise how many different paints are out there, but one that appears to be used over here on restorations, coach paint, and is brushed on doesn`t make an appearance in any of the forums like this one. The Model A isn`t being restored as a show car but i would like it to look original to the average viewer and i would like to do the repaint myself. Having seen the results of coach painting with a brush i was very impressed, he did say though that it was labour intensive involving a lot of sanding and polishing. A possible alternative could be cellulose, i resprayed my Harley with it and was well pleased with the end result.
So far i have stripped the interior, what i thought was moth damage turned out to be mice, in readiness for the new interior from Snyders, and i just have to decide on the paint finish, controversially i am leaning to a departure from the dark blue top/black bottom to allover black with a red coachline and red wheels.
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