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Old 10-02-2017, 10:15 AM   #26
MARTINSR
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Re: Pearl vs Metallic questions

You need to practice with some junk parks like you have with that door. You can go and get another door from a body shop for free. We throw out parts like this every day, LOTS of them. Every once in a while someone comes by because they want some metal or a test panel like you need and we are more than happy to give them to them so you could check with a local body shop to get a door off a Corolla or something.

This can REALLY make a big difference, paint the whole door. Then the next day mask the door down the middle and paint half of it. See if you can do it with the exact same gun distance and speed and pressure and all that, it's really not that hard. Do be sure you have the same color, a little different pressure can make a big difference in how metallic lays down. It's not that hard, but I can't believe the guys who can't pull it off!

I remember a head painter once who just couldn't grasp it, the car would be different colors and he would make comments like "the spray out card looked good though."

One day he sprayed the fender on a truck and the color was off by a mile. He showed me how the spray out card matched beautiful. I looked at him right in the eye and said "That is the evidence, that is the finger print, the DNA, that is the evidence that you sprayed the spray out card different than the fender!" He STILL didn't get it.

This is a test spray I am referring too, he would spray his spray out card to match the color WAY wetter than the car, I would see him, I would watch him BOMB the paint on the spray out card MUCH wetter than you could possibly spray the car. I would go and look through the window of the booth as he sprayed the car and of course he was spraying it normally not bombing it on like the spray out card, NO WONDER they were different colors! This isn't rocket science....but alas he couldn't get it.

Then I see guys like you who have put the time and thought into it and spray a car in pieces over months and it looks like it was painted at once.

Consistency that's all it takes!

Brian
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Old 10-02-2017, 10:47 AM   #27
B. W.
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Re: Pearl vs Metallic questions

Not as experienced as others so when I spray I write everything down: what part, outside temp, inside temp, humidity & pressure. I'm also really picky on my mixing ratios. That way if I have a problem I might be able to trace it down. (the problem is usually me!)
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Old 10-03-2017, 10:06 AM   #28
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Re: Pearl vs Metallic questions

Quote:
Originally Posted by MARTINSR View Post
You need to practice with some junk parks like you have with that door. You can go and get another door from a body shop for free. We throw out parts like this every day, LOTS of them. Every once in a while someone comes by because they want some metal or a test panel like you need and we are more than happy to give them to them so you could check with a local body shop to get a door off a Corolla or something.

This can REALLY make a big difference, paint the whole door. Then the next day mask the door down the middle and paint half of it. See if you can do it with the exact same gun distance and speed and pressure and all that, it's really not that hard. Do be sure you have the same color, a little different pressure can make a big difference in how metallic lays down. It's not that hard, but I can't believe the guys who can't pull it off!
Would this panel do? I had practiced how to weld on it years back.

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Not as experienced as others so when I spray I write everything down: what part, outside temp, inside temp, humidity & pressure. I'm also really picky on my mixing ratios. That way if I have a problem I might be able to trace it down. (the problem is usually me!)
Ill keep notes as well, thanks!
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Old 10-03-2017, 12:00 PM   #29
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Re: Pearl vs Metallic questions

Any panel would do, but that will take a bit of work to even get it good enough for a test panel. At your local body shop they will have bent fenders and such with nice paint on them that all it needs is a scuff and you can paint it. If you want to sand all that door down feathering it out and put a coat of primer on, that's good too.

Brian
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Old 10-03-2017, 12:13 PM   #30
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Re: Pearl vs Metallic questions

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paint the whole door. Then the next day mask the door down the middle and paint half of it. See if you can do it with the exact same gun distance and speed and pressure and all that, it's really not that hard.
I see what you mean, Ill check around.
Question though on the 2nd day masking half the panel and recreating the same factors. Wont the fact that its a 2nd coat look different to begin with even if I have everything going right? Just making sure I understand the exercise. I assume its more about practice than it is about matching exactness in the panel.
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Old 10-03-2017, 12:15 PM   #31
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Re: Pearl vs Metallic questions

It should NOT look different. If it has full coverage, if it's applied the same and has full coverage they will be the same.

Brian
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Chopped, Sectioned, 1953 Corvette 235 powered. Once was even 401 Buick mid engined with the carburetor right between the seats!
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Old 10-03-2017, 05:40 PM   #32
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Re: Pearl vs Metallic questions

You see this every day but Im amazed at the scraps they have in the dumpster. I also saw a 63 c10 left front fender sitting next to it that was spoken for. Now its time to scuff it up and get some paint going.
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Old 10-09-2017, 11:14 AM   #33
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Re: Pearl vs Metallic questions

Hey Brian, before I get completely committed the color choice I read this in one of your write ups on taping the jambs

http://67-72chevytrucks.com/vboard/s...ad.php?t=80128

Quote:
Some “value lines” can be very transparent, so you save no money because you may have to put on twice as much. A high pearl or metallic color may “model” easily, that may be a reason to scrap the color or brand.
I have purchased some of the saddle paint color from PPG and the guy told me it doesnt come in the premium line..just the shop line or something like that. Ill post the pic of the can if it helps to get more detail.

Question 1:
How can I accurately test the number of coats needed and transparency on the door I found? I assume spray coat after coat and see what looks right, but what Im getting at is how is it best to judge the color and number of coats to make it look its best. Once I have that figured out I can tell a few things, how much paint Im likely to need and just how transparent the paint they sold me is. To a point you made in the write up, it can effect the old budget.

Question 2:
How can a newbie best tell this metallic paint is going to "model" easily?

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Old 10-09-2017, 05:59 PM   #34
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Re: Pearl vs Metallic questions

We use test panels like this so you can see if it has full coverage.





I find it very hard, unbelievable that the color isn't available in the top of the line paint. The colors chosen in those value lines are from the top of the line, there are simply much less of them. Where as the top of the line system may have 12k colors the value line has 1500 and where as the top of the line will have "alternates" for each color the value line has none, it's that sort of thing.

If you didn't know, and "alternate" is a created by the manufacturer when they paint thousands of cars and they all aren't shot with the same can of paint right? Even when the paint goes to the factory in 55 gallon drums, there are MANY of those 55 gallon drums and they can vary a little in color, thus creating "alternates." Many colors will have 5-7 alternates. And you can't believe the difference between them! OMG they are DIFFERENT colors. Some you would never see if the cars were parked side by side, others would be very obvious!


But I find it very hard to believe that color wouldn't be available in the high end lne

line. Personally, I would think about a different color then.

Brian
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1948 Chevy pickup
Chopped, Sectioned, 1953 Corvette 235 powered. Once was even 401 Buick mid engined with the carburetor right between the seats!
Bought with paper route money in 1973 when I was 15.

"Fan of most anything that moves human beings"
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Old 10-09-2017, 07:14 PM   #35
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Re: Pearl vs Metallic questions

I'll double check on the high end availability, the guy mixing it last time muttered that it wasn't as he was looking at his computer screen doing a search. I'll also see if they carry any of those test panels,I tried doing a search for them and found this site but Id need to order 750 of them.

https://www.acttestpanels.com/produc...3&categoryid=2

On the question about the paint modeling,can you describe what to look for?Orange peel? Bumpiness?
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