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General view of application
2. General view of application
2.1 Application
All painting jobs in the workshop and on the building si-
te, small and large-area dispersion work with the spray
gun or internally fed Airless roller, corrosion and fire pro-
tection.
Examples of object of spraying
Doors, door frames, balustrades, furniture, wooden clad-
ding, fences, radiators (heating) and steel parts, internal
ceilings and walls, and also façades, basement garages,
fire and noise protection for steel and wooden construc-
tion.
2.2 Coating materials
Processible coating materials
Pay attention to the Airless quality of the
i
coating materials to be processed.
Dilutable lacquers and paints or those containing sol-
vents, two-component coating materials, dispersions, la-
tex paints, façade paints, roof and attic coatings, fire and
corrosion protection material.
No other materials should be used for spraying without
WAGNER's approval.
Filtering
In spite of the suction filter, the insertion filter in the spray
gun and the high-pressure filter, filtering of the coating
material is to be recommended in general.
Stir coating material before commencement of work.
Attention: Make sure, when stirring up with
i
motor-driven agitators that no air bubbles
are stirred in. Air bubbles disturb when
spraying and can, in fact, lead to interruption
of operation.
Viscosity
With this unit it is possible to process highly viscous
coating materials of up to around 30.000 mPa·s.
If highly viscous coating materials cannot be taken in by
suction, they must be diluted in accordance with the
manufacturer's instructions.
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g
Two-component coating material
The appropriate processing time must be adhered to
exactly. Within this time rinse through and clean the unit
meticulously with the appropriate cleaning materials.
Coating materials with sharp-edged additional
materials
These have a strong wear and tear effect on valves,
high-pressure hose, spray gun and tip. The durability of
these parts cane be reduced appreciably through this.
3. Description of unit
3.1 Airless process
The main areas of application are thick layers of highly
viscous coating material for large areas and a high con-
sumption of material.
A piston pump takes in the coating material by suction
and conveys it to the tip. Pressed through the tip at a
pressure of up to a maximum of 230 bar (23 MPa), the
coating material is atomised. This high pressure has the
effect of micro fine atomisation of the coating material.
As no air is used in this process, it is described as an
AIRLESS process.
This method of spraying has the advantages of finest
atomisation, cloudless operation and a smooth, bubble-
free surface. As well as these, the advantages of the
speed of work and convenience must be mentioned.
3.2 Functioning of the unit
In the following there is a short description of the techni-
cal construction for better understanding of the function.
WAGNER ProSpray units are electrically driven high-
pressure spraying units.
A gear unit transfers the driving force to a crankshaft.
The crankshaft moves the pistons of the material feed
pump up and down.
The inlet valve is opened automatically by the upwards
movement of the piston. The outlet valve is opened
when the piston moves downward.
The coating material flows under high pressure through
the high-pressure hose to the spray gun. When the coa-
ting material exits from the tip it atomizes.
The pressure regulator controls the volume and the ope-
rating pressure of the coating material.
Description of unit
ProSpray 27 • 31
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