Model Air is used directly or diluted with Vallejo Airbrush Thinner or Flow Improver. It is recommended to prime the surface first and then apply Model Air in several coats. The colors dry very quickly, forming a homogeneous film of exceptional resistance that preserves even the smallest detail of the model. Compressor air pressure recommended for airbrushing these colors is 15 - 20 PSI or 0.5 - 1 kg. Of course, Model Air can also be applied with a brush. For proper airbrush maintenance, we recommend using Vallejo Airbrush Cleaner. All purchased items are sent particularly well packaged. We almost exclusively use the service of "Deutsche Post" and "DHL". If Ebay sums up the shipping costs or otherwise calculates them incorrectly, wait for our payment information or you will receive a refun.