Clogs are the most common factor for why an airbrush may not be working properly.
The ratios are extremely important to keep in mind because the airway is very thin.
When do they occur? Clogs occur when adding polish into the cup before the acetone. The polish dries too quickly, or from not cleaning thoroughly and immediately after each use.
How do you fix a clog? You can unclog the machine in two ways:
1. Fill the cup with acetone. Cover the nozzle in the front where the air compressor and liquid would spray out of. This action should cause the liquid inside the cup to bubble and force the air back into the gun. This will remove the clog, however, you will need to pour out liquid inside the cup to ensure that any dried paint from previous use will be removed. Add acetone to the cup and spray out until clear.
2. You can remove both pieces of the gun in the front of the airbrush handpiece. Wipe down these pieces after each use to avoid paint build up. Light tread and wipe around the needle as well. You want to be sure to clean it, but not to bend the tip of the needle. Also remove only the cover piece of the airbrush gun. You can pull back the needle and let go to slowly inch out any jammed paint from the front nozzle. Repeat until all the dried or excess paint is removed. Add acetone to the cup and spray out until clear.