Using these Createx AB Opaque Airbrush Colors is quite straightforward. First, if you're using a 0.5mm or larger tip - sized airbrush, you can use the paint straight from the bottle. Just set your airbrush to a higher psi, around 35 – 45+ psi, and start spraying. It'll take about 2 - 3 coats to get an opaque finish. If you want to use a smaller tip - size airbrush, you need to thin the paint with 4011 Reducer. But keep in mind, these colors work best with larger tip - sizes, and they're not recommended for tip - sizes smaller than 0.35mm. When it comes to storage, keep the paint in a cool, dry place. And if you're done using it for the day, clean your airbrush thoroughly to prevent clogs. If you need to paint with smaller tip - sizes at lower psi, consider switching to Createx Illustration Opaque Colors.