Removing the needle cap is fine but should you hit your airbrush against something or drop it you could end up damaging the needle itself. So to take care of your airbrush make sure that when you are not using your airbrush that you replace the needle cap back onto it. This will give a little protection to the needle itself should the airbrush happen to fall. The trigger will control the air and the amount of paint that comes out is determined by the needle adjustment on the back of the airbrush handle. Dual action is when the trigger on the airbrush controls both the air and paint. The trigger is pressed down for the air and back for the paint. Now when it comes to the feed on the airbrush there are three types of feeds that you can choose from. This will cause the airbrush art tattoo to come off to soon. The use of talc powder after the design has dried will help to keep oil from building back up and thus still ruining the airbrushed tattoo. Nails should be clean and buffed prior to beginning. Buffing the nails will give for a rougher surface for the paint to cling onto. Why Airbrush Art Fits For Everyone The thing with airbrush art is that it can be done for just about anything imaginable. Artists have been airbrushing a variety of surfaces for years now. The images they create are just a vast as the surfaces that they are airbrushing them on. This is why airbrush art fits for just about everyone around. The Learning and Product Expo: Art is one such place to take part in workshops with airbrush experts and gain some hands on experience. While under the supervision of an expert you can quickly learn where you are making some mistakes with your work. Expert instructors include Peter West and Pamela Shanteau who hold classes at the Learning and Product Expo: Art for beginners through to advanced. The best airbrush to use for putting airbrush art onto an automobile is a gravity fed airbrush. This is the one that professionals use and will give your artwork a high quality look. The paint can be automotive paint but make sure that you use a well ventilated area as the fumes can pose a health hazard.