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Need PPG Yellow Paint code

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Frank-in-Tallahassee

04-03-2002 08:18:40




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I seem to have misplaced my notes for the PPG Ag Yellow.

I'm using # 46180 Green, and I like that color, but the yellow in the book looks too orange, and another seems too gray.

I'm going to spray up some test panels with some old JD leaded paint that I have and try to match it up, but I thought a code to start with might speed up the process.

Frank-in-Tallahassee
70D // 855




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G-PULLER

04-03-2002 10:05:50




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 Re: Need PPG Yellow Paint code in reply to Frank-in-Tallahassee, 04-03-2002 08:18:40  
The PPG Ag paint chart shows two numbers 80186 and 81512.
You have the right idea, give paint supplier paint number and your JD spray outs and have them match the PPG to JD color.



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Clooney

04-03-2002 13:05:15




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 Re: Re: Need PPG Yellow Paint code in reply to G-PULLER, 04-03-2002 10:05:50  
Frank, spraying a test color from the Deere paint is a good start. Be careful what color you spray it over, that yellow has a lot of bleed through. Maybe a second coat a day after the first dries will yield a truer representation of what you are after. The computer match up sees those bleed through colors as part of what it is matching. ~In the past when I have done computer matching I usually go home & do a test sheet over the primer I'm going to use, then usually have to go back & have them do a slight tint change to make it correct.
~I don't know if you can cross reference or not but, The Dupont Centari I have used with good color is, (I have 2 numbers in my computer so am not sure if one is the base & the second is the tint) but you can see if they show either one as a yellow color)---263A, code:DT2612

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Frank-in-Tallahassee

04-03-2002 13:24:45




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 Re: Re: Re: Need PPG Yellow Paint code in reply to Clooney, 04-03-2002 13:05:15  
third party image

Thanks Clooney.

I'm going to go out now and atart preparing my test panels. I'll coat them just like the wheels will be, and finish with a stripe or two of the old JD yellow I have. Maybe even a stripe of the new Yellow from a spray can.

The plan is to mimic the same number of coats and application sequence.

1st: Gray epoxy primer
2nd: Buff High-build primer (I thought this would help me get better, smoother yellow coverage
3,4,and maybe 5: Yellow

I'll sure take those numbers with me. It might get us closer. I just didn't like what I saw on the chip chart.

P.S. Did ya see that mighty 855 hoist that rear wheel ?

Frank-in-Tallahassee
70D // 855

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Clooney

04-03-2002 13:37:30




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 Re: Re: Re: Re: Need PPG Yellow Paint code in reply to Frank-in-Tallahassee, 04-03-2002 13:24:45  
Frank, yes I saw the 855 with the wheel. Would it lift from the end of the boom?
~The buff primer is a good idea, just don't use too heavy of a coat as that stuff shrinks with age.
~That wheel looks pretty good, did you have to sand blast or could you get it like that with your home made stripper?
~Did you give it a treatment of phosphoric acid to kill the rust?



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Frank-in-Tallahassee

04-03-2002 15:08:31




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 Re: Re: Re: Re: Re: Need PPG Yellow Paint code in reply to Clooney, 04-03-2002 13:37:30  
Clooney:

It would lift it at the end of the boom if I pushed up an addditional 50# or so, but it would keep it up once it was there.

I sandblasted the casting. One side I had stripped with my lye gravy, and all it needed was kind of a wash of blast..ten minutes or so. The other side was caked with three coats of paint and primers, and it took about 40 minutes in all to strip. If I ever do a tractor all the way again, I will reomve all I can with the lye gravy. It just really speeds up the process.

After blasting last night (wheel and rim), I blew it down and spayed on phosphoric to stabilize it. I've done that on all the bare metal. This wheel is likely going to hang in the rain tonight, so it might need a second application. I like to spray it on with an old gun because it goes much faster than with a brush, but you need to wear a mask, as it will bite youe nose and throat !

I wasn't aware that the high build might shrink with age...I've used it before and never had an issue, but maybe I've sanded a good portion of it off. The kind I am using is a urethane.

F-I-T

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Clooney

04-03-2002 15:36:35




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 Re: Re: Re: Re: Re: Re: Need PPG Yellow Paint code in reply to Frank-in-Tallahassee, 04-03-2002 15:08:31  
Frank, all primers shrink with age, some just more than others. The epoxy type, especially the more costly ones, have very little shrinkage. The standard 1 part primers, even the high build primers shrink a fair amount as time goes on & the solvent leaves the solids. In most cases the shrinkage isn't a big problem especially on castings. ~Where the shrinkage is a problem is if it is used on pitted metal to fill the pits then sanded off to level the surface. It takes time but the pits will eventually start to show in the paint surface, the smoother the paint job is, the more it will show. ~I have been using the new 2 part urethane epoxy high fill primers (K-36) over a base sealer coat of DP-40 LF & all seems good after about a year, but only time will tell if the urethane is free of shrinkage. The cost of DP-40LF & urethane primer is high but much cheaper than a re-paint after a year or two.

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F-I-T

04-03-2002 16:07:45




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 Re: Re: Re: Re: Re: Re: Re: Need PPG Yellow Paint code in reply to Clooney, 04-03-2002 15:36:35  
Clooney:

I was using DP-40 (and DP-90 where appropriate) on another prject and I really liked them...pricey though ! My friend has an auto supply business, and they feature PPG. He has been selling a bunch of a 2 part epoxy primer produced by Transtar, and he recommended I try it. On a tractor, it's quite a bit less expensive. I see what you're saiyng about the pitted metal, and I've never really relied on it to fill that deeply.

I have used the gray 2 part epoxy primer on all bare metal surfaces after treating with an acid wash. I am using a coat of the high-build on the hood, and nose cap so that they would sand down smoother. Then like I said, I thought I'd used the buff colored high-build to bring the wheels up to a yellow tint before the color. Does that sound like a decent plan ?

The ureathane high build is a two part, also. You can tell I'm not a paint guy, and I'm really learning as I go. So far I've been please with the results.

Frank

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F-I-T

04-03-2002 10:35:05




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 Re: Re: Need PPG Yellow Paint code in reply to G-PULLER, 04-03-2002 10:05:50  
Thanks GPuller.

I think those might have been the two I looked at this morning...you know, one too gray and one too orange.

I'll make some swatches this afternoon.

Thanks.

F-I-T



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