Rhyas SGM4003, Original Instructions Manual

Page: 6 / 12

EN
6
should not be sprayed, using a good quality
masking tape. The paint or fluid to be sprayed
should be thoroughly mixed and free from lumps
or other particles. Many substances can be
sprayed with your spray gun, but always check
the manufacturers recommendations before
purchasing your paint.
Thinning
Always remember to disconnect from
the mains supply before filling the paint
container with sprayable material.
Most paints are supplied ready for brush
application and will need to be thinned before
they are suitable to be sprayed. Follow the
manufacturers advice on thinning the paint when
used with a spray gun. The viscosity cup will help
you to determine the correct viscosity of paint to
be used. To determine the correct viscosity, fill
the cup to the brim with the paint. Measure the
amount of time it takes for the cup to empty back
into the can.
The table below shows recommended times for
different types of material.
Plastic & latex paint 24 - 28 seconds
Water based paint 20 - 25 seconds
Primers 24 - 28 seconds
Varnishes 20 - 25 seconds
Oil based paints 18 - 22 seconds
Enamel paints 18 - 22 seconds
Aluminium paints 22 - 25 seconds
Car undersealing 25 - 35 seconds
Wood sealers 28 - 35 seconds
Wood preservatives No thinning required
Wood stains No thinning required
If the paint takes longer than the recommended
time to empty, then further thinning is required.
Mix in a small quantity of the appropriate thinner
and use the viscosity test until the correct
thickness is achieved. Some sprayable materials
contain particles and lumps. These materials
should be strained before filling the paint
container.
Spraying
Fig. C
Fill the paint container with the correctly thinned
and strained paint. Connect the spray gun to the
mains supply. Aim the spray gun at a piece of
scrap material and operate the trigger switch until
paint is spraying. Adjust the output control (2) until
the required volume of paint is spraying. Turn
the output control in a clockwise direction (B) to
reduce the flow and anti-clockwise (A) to increase
the flow. Adjustment of the output control will
affect the spray pattern. A poor spray pattern will
concentrate the paint in the centre of the spray and
give a blotchy finish. A good spray pattern will give
even distribution of paint throughout the pattern.
Spraying techniques
Fig. D
To obtain the best results, keep your spray gun
level and parallel to the surface at all times. Keep
the nozzle 25 - 30 cm from the surface and spray
evenly from side to side or up and down. Do not
spray at an angle as this will lead to paint runs on
the surface. Use smooth and even strokes. When
spraying large areas, use a criss-cross pattern as
shown.
Fig. E
Never start or stop the spray gun while it is aimed
at the surface to be sprayed. Evenly control the
speed of movement of the spray gun. A fast speed
of movement over the surface will give a thin coat
and a slow speed will give a heavy coat. Apply
one coat at a time. If a further coat is required,
make sure you observe the manu-facturers
drying time recommendations before applying a
second coat. When spraying small areas, keep
the output control on a low setting. This will avoid
using too much paint and prevent overspray.
Where possible, avoid stopping and starting when
spraying an object. This can lead to too much,
or not enough paint being applied. Do not tip the
spray gun to more than 45°.
Fitting and using the flexible nozzle
Fig. F
The flexible nozzle extension should be used to
spray flat or horizontal surfaces. It should also
be used in areas with limited access. To fit the
flexible nozzle, unscrew the basket nozzle and
attach the flexible nozzle in it‘s place. Replace the
basket nozzle on the end of the flexible nozzle
and tighten.