DuPont water born metalic color match
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We spray DuPont Chromax Pro, solid colors match fine but metalics, mostly silver, the match is horrible at times. Even when the color chip or spray outs look fine. We use the 3m “sun gun” to match the color chips and also use Nason 465-00 clear. Anybody having the same problem or have any new tricks for me?
Thanks, Nick
Use the camera, maybe that will help.
What’s wrong with the match? Too coarse, too fine, etc…….
Camera seems to help a little but not all the time, we have the older camera not the newest one. Its not the grain of the metalic that is effected as much as the actual shade of the color. it always seems be a shade or two darker.
Its not only you having problems with colour matches using Dupont waterborn. There are alot of shops tossing the system due to poor matches. Its the nature of the beast,get a new system or continue to have problems.
[quote=”nlafayette” post=25493]We spray DuPont Chromax Pro, solid colors match fine but metalics, mostly silver, the match is horrible at times. Even when the color chip or spray outs look fine. We use the 3m “sun gun” to match the color chips and also use Nason 465-00 clear. Anybody having the same problem or have any new tricks for me?
Thanks, Nick[/quote]
I am a little confused here. I understand that the colours don’t always match the chips. But if you do a spray out card, and cannot get the same results as the card then it sounds like user error.
I used Cromax in a shop and a little in another shop. It does have its issues, but it is workable. Are you blending your colours out properly and able to see the blend/colour difference?
Talked to the painter- he said problem mostly occurs when blending into adjacent panel and wet bed needs to be sprayed close to edge of panel. it seems as though the wet bed is changing the shade.
[quote=”nlafayette” post=25501]Talked to the painter- he said problem mostly occurs when blending into adjacent panel and wet bed needs to be sprayed close to edge of panel. it seems as though the wet bed is changing the shade.[/quote]
If I’m reading you right it might not be the basecoat that’s at fault at all. If he’s talking about the far end of a blend panel being darker than the original, then it’s more likely the build up of the wet bed and extra clear causing the darkening effect. We call it the magnification effect in the UK, not sure about over there 🙂
One way to reduce it is to make sure he only puts one coat of clear right to the edge of the panel, but that can sometimes cause it’s own problems due to having such a thin film thickness.
[quote=”Andy T” post=25502][quote=”nlafayette” post=25501]Talked to the painter- he said problem mostly occurs when blending into adjacent panel and wet bed needs to be sprayed close to edge of panel. it seems as though the wet bed is changing the shade.[/quote]
If I’m reading you right it might not be the basecoat that’s at fault at all. If he’s talking about the far end of a blend panel being darker than the original, then it’s more likely the build up of the wet bed and extra clear causing the darkening effect. We call it the magnification effect in the UK, not sure about over there 🙂
One way to reduce it is to make sure he only puts one coat of clear right to the edge of the panel, but that can sometimes cause it’s own problems due to having such a thin film thickness.[/quote]
That is a very common problem that can happen with any paint brand, most noticeable on silvers. Sometimes it gets you, sometimes not…
if ya match the sidetone an ignore the face u will be able ta blend any silver the sidetone is what kicks ya in the balls not the face :teach try it
[quote=”Ben” post=25505]
That is a very common problem that can happen with any paint brand, most noticeable on silvers. Sometimes it gets you, sometimes not…[/quote]
Yup, most likely the issue.
I used Cromax for awhile… Color match is not their strong point. Using the camera AND Vindicator (VIN #) together definitely helps get you to at least a decent starting point. If the wet-bed is brought to, or very near, the end of the blend panel, you WILL have issues on light colored metallics.
The Dupont reps don’t like to tell people this (because they’re not supposed to), but if you stop using the wet-bed, you will find Cromax is easier to use. I was told this by someone with Dupont, and it made things much easier for me. Most of the other shops in my region that are spraying Cromax DO NOT use the wet-bed/blender anymore after word got around that it was more trouble than it’s worth. Try it out on something and see what you think… :cheers
Hi I use the spies hecker hitec (basically cromax pro) over here in the uk, they put it in our shop beginning of last year, it came with no colour chips only the spectro camera, the reps didnt know all about it as it only be in the country weeks before they installed it.
I found out many things but one main thing is paramount is that the spectro is calibrated and colour checked exatly at the same place,temperature and humidity the same, so for example dont calibrated it 8 degrees in the prep shop and check your colour in 20 degree spray booth I found this to produce much better results. I alway sprayout my colours and clear and dry to a point before making an informed decision.
Do you use blender on your blends? this is very important that the dry overspray from your blend is absorbed by the blender as these DPC products need a wet film to arrange the metalic particles.
Another thing I also do is never swamp it to much base (I know its hard as some silver dont cover in the 1 1/2 coat yeah right!) and give the base a couple of minutes to settle before putting the booth on flash-off. Clearcoat as usual with 1 coat of clear at the end of the blended panel and bobs your uncle youve a spot on job.Also as this product goes on in one hit you need a fair amount of room to blend, putting a coat on drying it putting another coat on drying it like many basecoats are applied is easier to keep small, Dupont coatings need more room.
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