discussion What pressure?

[Guest]

Hi dave does your brush have a pre-set trigger control, if so tighten down on it so the trigger only moves back very slightly and set your compressor down to 12-15 psi. Thin lines requires some control, by moving the brush quite close to the kit and keeping it there, I have just started using Vallejo model air and if you find the paint is slighty thick just add a drop or two of thinner give it a mix and test the brush on some kitchen roll first. if you are able to write your name in thin lines you have everything spot on.


scott

 

[stona]

The thickness of a line is decided by how far from the object the airbrush is held when spraying. That is fairly self evident. The difficult bit is maintaining the distance to give a consistent line, and also increasing the mount of paint introduced as you move further away (for a thicker line).


There is no avoiding the need for practice. It's something I don't do enough! I've been spraying some dark grey this morning and with this thread in mind I sprayed this on a sheet of white paper (terrible photo!) to use up the paint left in the cup. The thinnest line is a pencil thin line.


View attachment 245813



It shows a lack of practice, but anyone should be able to do this, or better, with a little practice. Though it won't be relevant to most the paint is a Colourcoat enamel sprayed from an Iwata Eclipse (0.35mm nozzle) at about 35 psi.


Cheers


Steve

 

[BBdave]

I had a bit of a try this afternoon and turning the pressure upto 30 psi and it sprayed loads better with Vallejo air I just need to refine my trigger technique.


Dave