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I cannot attempt to explain the many and varied spray booth systems with their different configerations but what I can tell you is they all have the same capabilites of painting a car in a controlled enviroment and producing a finish as good as if not better than a factory painted car.



Diagram of bake-oven air flow Spray Booths operate on a downdraft system which basicaly allows fresh heated air to be fed through a filter in the ceiling,
(as can be seen in the diagraam on left) passing through the work area around the contour of the car and leaving the booth through an air channel in the floor and then ducted out through the roof.

This allows the painter to breath freshly inducted air through a small hose and into a face mask while painting.

The air flow passing over the car and out through the floor eliminates overspray helping to keep
the vehicle free of unwanted particals, in fact if you stand beside the painter while spraying and
out from the car a metre it is relatively fresh air.




This is a photo of the inside of a bake booth. The ceiling filter can be seen and the filter material will not let any particals through that can be seen by the naked eye

The car sits on a grating and under this can be a water bath or a dry filter material which catches any loose paricals that are forced to the floor.
This booth has about 60 florescent tubes giving of a very good light.

Spraying temperatures are approx 22 celsius and this is increased to 80 for drying.
Photo of inside  bake-oven




Photo of Bake-oven This photo of the booth shows the housed working parts on the right hand side.
Spray booths can be oil fired, gas fired and there are also other methods of heating too.
The walls and roof are made of Rudnev paneling, these panels are 100mm thick and have a polystyrene centre sandwiched between two steel panels, insulation is excellent and it is exceptionally strong.
One other point to make is that when the booth is operating it has a positive air pressure and that means that you have to push the doors closed against this pressure, the advantaged is that no dust can enter the cabin.




Side photo of fan These are the fans that drive the air through the booth, the one on the left is a side view and the one on the right is a front view.
One fan is pushing the warm air through the ceiling down through the filter and over the car and the other fan is sucking the air out through another filter and the clean air is expelled outside.
Photo of fan







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