They actually can, if you water them down to a milk consistency, thats the way it is suppose to be mixed for an airbrush.
FAQs
yes, on most items- yet if it's a softer item it soaks in.
Of course, this pigment can be applied to rocks.
Yes. This is exactly what I bought this pain for, and it works great for paint pours. Depending on the amount of medium you use I think it could possibly thin it to much to use for traditional painting with a brush.
2 oz bottles, ok on wood.
I personally have not tried them in an airbrush, but they are a pretty standard acrylic paint, but do tend to be a bit thin in brush applications. The price point on this set is good enough that it may well be worth a try, just follow your airbrush makers instructions for thinning ratios and try it on some test pieces.
They are water base and the brushes will clean up with soap and water. But like any paint if it gets on your clothes it will stain.