Inconsistant ink lines?

Barlow,

My first guess would be to check the air hole in the lid of the airbrush bottle. If it's blocked it can prevent paint from moving.

Cheers, Aaron

The canned gas could be part of your problem.  The pressure could be anywhere from 40 to 10psi depending on the temperature of the can.  Placing the can in a bowl of warm water can help.  Don't exceed 120 degrees F or the can might burst.  You really should invest in a compressor with a regulator and moisture trap.

The ink could be drying on the needle as you spray.  It's called tip dry and is more of a problem when doing fine lines.  The dry ink or paint blocks the nozzle.  There could also be fine particles in the ink.  Try some food colors and see if it happens.  If you use the metal side cup instead of a bottle, it won't take much.

Don

When you say "ink", is that a water based solution? If so, getting good results is always hard to do. 

And airbrushes are great tools, but you have to really be patient and get a lot of practice to get good results. 

I used to use canned propellant when I first started. It gets freezing cold once it is released from pressure. I don't know what that means for "ink", but it could be a problem. 

And you cannot control (regulate) the pressure coming to the brush. That is a significant disadvantage.

The Ozone Safe stuff adds up quickly at  $ 8.00 / can. You should be able to find a decent compressor for around $ 100.00. You'll be really glad you did.

Don Wheeler

The canned gas could be part of your problem.  The pressure could be anywhere from 40 to 10psi depending on the temperature of the can.  Placing the can in a bowl of warm water can help.  Don't exceed 120 degrees F or the can might burst.  You really should invest in a compressor with a regulator and moisture trap.

The ink could be drying on the needle as you spray.  It's called tip dry and is more of a problem when doing fine lines.  The dry ink or paint blocks the nozzle.  There could also be fine particles in the ink.  Try some food colors and see if it happens.  If you use the metal side cup instead of a bottle, it won't take much.

Don

 

I used to use that water trick when I used the canned propel, after first getting my airbrush.  I also used to periodically pick up the Propel can and shake it.  One day I was doing a somewhat longer job than most, and noticed the pressure dropping.  I picked up the can to shake it, and the bowl and water came up with it!  The temperature of the can dropped far enough below the freezing point that it froze all the water in the bowl!  That was when I realized I had to go out and buy a compressor.