General View Of Application; Application; Coating Materials; Description Of Unit - WAGNER ProSpray 3.25 Operating Manual

General view of application

2. General view of application
2.1

Application

Materials
Release agents, oils, undercoats, primers, fillers,
synthetic resin-based paints, acrylic paints
recommended nozzle size: FineFinish 0.008" - 0.014"
Emulsion paints, latex paints
recommended nozzle size: 0.017" - 0.027"
Anti-corrosive agents, flame retardants, fabric
adhesive
recommended nozzle size: 0.021" - 0.031"
Airless-scrapers
recommended nozzle size: 0.027" - 0.039"
2.2

Coating materials

Processible coating materials
i
Pay attention to the Airless quality of the coating
materials to be processed.
Dilutable lacquers and paints or those containing solvents, two-
component coating materials, dispersions, latex paints.
No other materials should be used for spraying without
WAGNER's approval.
Filtering
Despite suction filter and insertion filter in the spray gun, filtering
of the coating material is generally advisable.
Stir coating material before commencement of work.
i
Attention: Make sure, when stirring up with
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 25.000 MPa·s.
If highly viscous coating materials cannot be taken in by suction,
they must be diluted in accordance with the manufacturer's
instructions.
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.
Uncontrolled Copy
GB
= Recommended
Object Size
2
up to 200 m
2 2
200 m - 800 m
2
more than 800 m
2
up to 200 m
2 2
200 m - 800 m
2
more than 800 m
2
up to 200 m
2 2
200 m - 800 m
2
more than 800 m
2
up to 200 m
2 2
200 m - 800 m
2
more than 800 m
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 consumption 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 221 bar (22.1 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 technical
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 coating material exits
from the tip it atomizes.
The pressure regulator controls the volume and the operating
pressure of the coating material.
6
Description of unit
= Not-recommended
Model
ProSpray 3.25