Is it possible to get a fine line from canned air? My son, who’s a grandmaster when it comes to airbrush rendering noted for his car models (Allan Buttrick III) gave me a good airbrush and a bunch of cans. Been OK for ship hulls, etc. But want to paint my new Accurate Avanger kit with air but am reluctant to spring for a compressor yet with my relatively low experience. Can I, by mixing thin and lowering the pressure get enough control for the parting line between the top color and the bottom color…or do I have to stop being cheap and spring for the noise?
Given how fast cans go down, the lack of control for pressure, the rapid loss of pressure, and the frustration these present to a modeling session, you’de be better off getting the compressor. Better to poractice and learn on the equipment you’ll use for th elong run than try to learn one thing then have to unlearn a skill to learn a new one.
An airbrush 1) Does not care where its air comes from, and 2) Is a stupid piece of steel!
The problem with canned air is that the pressure drops as you use them. As they are used they get cold, and that temperature change causes the pressure to drop, which in turn lowers the airflow at your airbrush. As long as you can keep the pressure consistent and the air clean and dry, the airbrush really doesn’t care where that air comes from. The fact that the air is coming from a can won’t affect how thin a line you can paint except that, as noted, the pressure will begin to drop.
Airbrushes are stupid. They don’t control the lines or anything else, they only do what they are told. The ability to paint a fine line comes as much (or more!) from the abilities of the user as it does the brush. My airbrushes can paint far finer lines than I am capable of doing.
To answer your question, sure it can be done. Swap out your air cans frequently and keep the pressure consistent, and practice, practice, practice!
There are, of course, alternatives to cans and compressors. There have been numerous posts on that subject, but the most common are air tanks that are used to inflate tires (about $30 plus the cost of a regulator and some associated plumbing) or a carbon dioxide or nitrogen tank (normally leased and I don’t know the prices).
It helps a lot if the can is kept in a dish of warm water while spraying, but I would suggest a compressor or other alternative air source as canned air is unreliable as Scott said, as well as being real expensive in the long run.
Thanks to all for the help. I’m going to finish up the cans and then get a reasonably priced compressor. Might like some suggestions on the compressor.