A
ashwind
Guest
Do you paint different parts of the model with different air pressures? You mix your paint, you get it to flow and you don't touch it again until you mess with the paint again. You don't test flow and pressure on the model, you do it on the side.
Actually I paint the same part with different airflow if I need to. Highlighting for example, using highly reduced paint, I will use high airlow for better atomization to highlight the portions I need. then when I am done, I will just use low airflow to deliver one single wet coat for a smooth finish and blending if I want to panel line and decal but don't want to use clear coat.
Also very helpful when I want to avoid overspray when painting mirror like gloss black for chrome paint. Lower airflow can deliver more narrow wet coats on the narrower side of the part.
Why wont I want to change airflow with the same paint viscosity? A lot of people do it, they just do it with the MAC valve, I prefer using the trigger to accomplish the same task.
Like I say, I am not asking others to do it. It is just something I picked up and got use to. Works very well for me.
p/s: Oh and controlling airflow via the trigger has a very neat use. Many like to mix paint in the cup by back flowing/flushing, or clean the airbrush using back flushing. If you only hold down the trigger slightly, less paint drops flying around, less bubbles and generally less messy overall.