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6
THE COMPASS 2012
FineFinish – How it works
AirCoat painting – air-supported application
In the AirCoat procedure (airless + air) the material is forced through the nozzle using a reciprocating
or diaphragm pump with a relatively low amount of pressure (30 – 120 bar). The amotising
process is supported by compressed air (0.5 – 2.5 bar). This is made possible by the air cap that is
centrally located directly on the nozzle bore which surrounds the spraying medium like a sheath.
Airless painting – airless atomisation
Paint the airless way - the TradeTip 2 FineFinish nozzles stand for high-class quality surfaces. Read
more on page 55.
FineCoat painting – Low-pressure spraying
FineCoat is a low-pressure spraying technique that works with high air volumes and low air pressure
(up to 0.7 bar). A turbine generates the atomising air which flows through an air hose and
atomises the paint via an air cap. The atomising air is also used to pressurise the paint in the cup.
This delivers the coating material through the standpipe to the nozzle and atomises the remaining
air.