Airframes
Benevolens Magister
Ah ! I forgot you were using airbrush-ready paints !
Increase pressure slightly, and mist over the complete section continuously, building up the colour.
It'll use a bit of paint, and still be slightly uneven (unless you continue to cover the area in built-up coats), but, being inside, and away from direct light, it should look good enough.
Alternatively, use a household, water-based 'emulsion' paint, and paint it, with a brush, in one go. If you do this, do not dilute the paint, or it may warp the card stock. A thin coat direct from the can would do it. I often use a grey, emulsion primer as a base for 'concrete' on card, for dioramas, and it works fine.
It's a quicker, and much more economical way of doing it on relatively 'unimportant' areas, rather than exhaust fairly expensive modelling paint. Even kid's water colour paints could be used, either brushed or sprayed.
Increase pressure slightly, and mist over the complete section continuously, building up the colour.
It'll use a bit of paint, and still be slightly uneven (unless you continue to cover the area in built-up coats), but, being inside, and away from direct light, it should look good enough.
Alternatively, use a household, water-based 'emulsion' paint, and paint it, with a brush, in one go. If you do this, do not dilute the paint, or it may warp the card stock. A thin coat direct from the can would do it. I often use a grey, emulsion primer as a base for 'concrete' on card, for dioramas, and it works fine.
It's a quicker, and much more economical way of doing it on relatively 'unimportant' areas, rather than exhaust fairly expensive modelling paint. Even kid's water colour paints could be used, either brushed or sprayed.