Matching paint colour

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PostPosted: Wed Mar 08, 2023 7:47 pm
Ok thanks,colour code 926 ,2007 gmc truck.Silver Birch Metallic.

Just painting box sides,blending into tailgate and rear doors.Truck is a crew cab.

I ask because original primer is dark grey.

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PostPosted: Wed Mar 08, 2023 9:00 pm
Ok, so if I put in Colour Code "926" and Manufacturer "GM" with Year "2007" I get nothing.

So, just go with Colour Code "926*" and I get this:

Screenshot_20230309_121757.jpg


So it looks like the colour name is "Fine Silver Birch" and the Paint Code is "926L". Selecting that, I get:

Screenshot_20230309_120959.jpg


As you'll see, there are variants of that colour for different models, probably assembled in different plants, so the colours are slightly different due to different suppliers, different equipment or a host of other reasons. Interestingly, the Value Shade (far right column) varies from VS3 to VS4. So, what's the difference? The following picture demonstrates this. The top row of colours shows the colour painted over while the second row shows the effect. As you can see, even on a computer screen the difference is visible; on a car it will really stand out. This example is done with red, but silvers are affected too, in a similar way.

Screenshot_20230309_123254.jpg


The bottom row shows the differences in the shades of grey.

You need to identify your vehicle more accurately and then look at the correct primer shade for that colour in your vehicle, for the paint manufacturer of the paint you have chosen. It will likely be VS3 or VS4 (different manufacturers have different names for the varying shades of grey), but getting it right will make a big difference in your eventual colour match. When spraying you need to blend out the primer so the change is gradual over the blend panel, otherwise you'll see the colour change.
Chris



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PostPosted: Wed Mar 08, 2023 9:42 pm
When I first went to get a spray can to test I had 7 different ones to pic from for gm 926.
Now I’m not sure why the different names. I goggle 926 it says silver birch metallic.

Interesting how primer changes shade. I knew it would. Thanks for posting that.
I suspect I’ll have to do a few spray outs and see. Pretty disappointed on my first test as it doesn’t even resemble the card sample.

Thanks for your time.

Edit to add. I looked again at colour code you are correct it says 926L. Hmm. Maybe that’s why my first test is so off?



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PostPosted: Thu Mar 09, 2023 10:25 am
Checked my spray can and 926L label is fine silver metallic. Same paint just two different names I guess.
And only a few variants lol.
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PostPosted: Thu Mar 09, 2023 12:28 pm
its not uncommon for a color code to have several different names. the first thing you should do is to match the truck color as close as you can to the variant. i would also use the same color primer or as close as you can to the primer on he truck. blending anywhere you get close to the original color.
Jay D.
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PostPosted: Thu Mar 09, 2023 3:54 pm
Yes thanks,I picked up some black paint to tint my primer and a few spray out cards that are the right primer colour.
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PostPosted: Wed Mar 15, 2023 7:16 pm
Ok so brought a piece of cut out metal to the paint store and had them match it.Got a quart mixed up.Looks good but wont know till I spray some.
So question ,its base coat reduce upto 1:1.If I mix some and dont spray it all can I just pour it into a sealed container? Like a glass jar or something ? Assuming it can be used again at a later date?



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PostPosted: Wed Mar 15, 2023 9:42 pm
yes you should be able to save it, AS LONG as you don't catalyze it.
Jay D.
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PostPosted: Sat Mar 18, 2023 11:01 am
Found some time to play with my gun and a new colour. Did a few test sprays with different settings and pressure. Had the best results with the fluid turned in 4 turns out of 6. Pressure at the gun when trigger pulled for air about 32 psi. Fan was turned in maybe 1/2 a turn. Pressure at the port I kept at 2-3 psi. Best results came holding the gun closer to the paper. 5-6” this reduced the over spray a lot.
Ran out of paint as I didn’t mix much 125ml. Managed to spray a test card and I think it looks pretty good. See pic.
Will try again and perhaps lower gun pressure more to try to make it a little easier to do small areas.
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PostPosted: Sat Mar 18, 2023 11:19 am
Some of the tests may have been a little skewed. The gun wasn’t pre loaded so to speak. Being a siphon gun /pressure pot it didn’t fully spray the first squeeze of the trigger. Took us a few sprays to realize this. Every time I opened the gun to see how much paint there was you needed to spray a little to load it up again.
You can see spray one had almost nothing so closed the fan a little then spray two shot a lot of paint.
So learning as I go. Adjusting the air dial on the gun was finicky so found out best to leave wide open.
So use to spraying rattle cans where there just isn’t much pressure.
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