8
●
Test the viscosity with the dipper as follows:
After thinning the paint or lacquer to spraying consistency, immerse the dipping cup until it is
full to the brim. To test, take the cup out quickly and count the number of seconds until all
the paint has flowed through the 4 mm nozzle, that is to say, up to the moment, when there
is a break in the outflow of paint. Count the seconds with your wrist watch or a stopwatch.
Where, for example, a consistency of 19 DIN seconds is required but the test result is 24
DIN seconds, thin the paint accordingly and repeat the measurement.
It is advisable to clean the dipping cup immediately after use so that it can be reused for the
next measurement.
●
After thinning and stirring, sieve the paint into a clean container. To sieve the paint use a
fine-mesh paint and lacquer sieve or nylon fabric.
“Our motto is: Correct thinning and sieving is half the battle won!”
6.3 Selecting the Correct Nozzle
Before you begin spraying, you must select the right nozzle for the paint and for the object to be
sprayed (see also Section 13 “Annex”). For normal spraying work, the standard nozzle set (1.0
– 1.5 – 2.0 mm) is adequate:
·
With
low-viscosity paint
and when spraying small objects or surface areas, use the 1.0 mm
nozzle; for larger surface areas use the 1.5 mm nozzle.
·
With
normal paints and lacquers
and for objects with larger surface areas, select the 1.5
mm nozzle.
·
When working with
high-viscosity paint
or when applying thick coats (for example floating
lacquering) use the 2.0 mm nozzle.
·
Other nozzles sizes are available for special applications:
0,2 – 0,3 – 0.5 – 0.8 – 1.2 – 1.8 – 2.5 and 3.0 mm (special accessories).
Summary of Contents for PN 1
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