3mm needle correcting thinning? And getting rased small like pills or blotches on my work.(Voyager) using correct air pressure according to paint manufacturer. Less then 6 inches from work 40/ 20 psi. What am i doing wrong?
When I asked what size needle I meant the tip size , not the needle shaft diameter . It will be in the range of .2 to .6 mm . ( like .25mm , .35mm , .65 mm etc - depends on the brand of airbrush ) Does your airbrush have only one size spray tip and corresponding needle ?
To recap ,What paint and thinner ? and how much thinner are you using ? 20 psi should be enough for most coatings -- is that 40 psi the tank or compressor discharge pressure , before the regulator ?
You're using Vallejo paint ? Model Color or Model Air ? You're using 70 % thinner , 30 % paint ??! If so , that's way too much thinner . I don't know what this " Ultimate " thinner is . Vallejo's airbrush thinner works great with their paint .
You said in the other thread you were holding the airbrush 6 inches ( 15 cm ) away from the work ? That's kinda far . I spray at half that distance , or less . Move closer and decrease the thinner amount by half -- like 50 / 50 , but I think you should be able to spray Model Color with only 30 % or so thinner and 70 % paint . The Model Color is very inconsistent in viscosity from color to color so you need to experiment with each one unfortunately .
Our Ultimate Airbrush Thinner is specifically formulated to work with ALL brands of acrylic modellers paint, ours is the only brand of modellers acrylic thinner in the world able to claim this! Our blended formula of six ingredients ensures a fast drying, smooth finish every time, no matter what...
I can't find a material safety data sheet ( SDS , MSDS ) on that stuff so I have zero idea what is in it .
Spray closer to the work for starters -- I'm guessing if you're spraying from 6 inches away on average you may be prone to spraying even farther away from the work in areas and that's when this issue of dry paint hitting the model is happening .
Yes , test mixtures to see how low an amount of thinner works well . 70 % thinner seems high , but I have no experience with the thinner you are using . Model Color can be kinda thick so ... ? Sounds like you are too far away from the work --- try spraying closer without changing anything else to see if that solves your issue .
As a lay preson i think no matter what the reviews say i think master airbrushs suck. Getting the same problems. I want to use the bager but the instuctions dont tell me what size needle. Its a 105 have to go on line and find out. The Neo is a bottom feeder. I have other master with a smaler bowl and it has a 2mm needle. I think something is wrong with the 3mm gun its pitting and when i release the triger slowly to go back just to air it puts down more paint.