In spray guns, the compressed air comes from outside and meets the paint particles shortly after it leaves the gun nozzle. This means it is atomised immediately and distributed radially which leads to widespread soiling in the spraying area that needs to be cleaned afterwards.
SprayMax sprays completely differently: The propellant is dissolved in the paint particles. Once the paint particles leave the spray head, the atomisation process continues until the painted surface is reached. On the one hand, there are larger, heavier particles at the origin of the spray jet which means that they are directed more specifically onto the surface being painted. On the other hand, continuous atomisation is guaranteed which leads to an even painting result. Also, the pictures show that the SprayMax spray jet produces much sharper edges than a spray gun, proving that the colour particles are kept together much more effectively and there is much less overspray.
Reference: Report Fraunhofer Institut für Produktionstechnik und Automatisierung (IPA), Stuttgart