2,2 bar - however you are probably asking because you have problems with the black color? So I suggest you try over thinning the paint to get it less saturated and less powerful. Many paints have a binder you can get separately. A binder is colorless and can give the paint more body. In that way you can reduce heavily without the paint gets to thin and runny. If you use createx paints you can get the 4004 transparent base. Try 1 drop black 2 drop base and thin with 3 drops thinner (if too thin add a drop base - if too weak add a drop of color)
what the air pressure on the black color
2,2 bar - however you are probably asking because you have problems with the black color? So I suggest you try over thinning the paint to get it less saturated and less powerful. Many paints have a binder you can get separately. A binder is colorless and can give the paint more body. In that way you can reduce heavily without the paint gets to thin and runny.
If you use createx paints you can get the 4004 transparent base.
Try 1 drop black 2 drop base and thin with 3 drops thinner (if too thin add a drop base - if too weak add a drop of color)