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Heavier, thicker material should be sprayed
with the flow control knob on high flow setting.
Thinner material should be sprayed with the
flow control knob on low flow setting.
For beginners, in order to get consistent paint
flow, It’s better practice to pull trigger all the
way till material flow adjustable knob rest
against housing.
PRESSURE CONTROL DIAL
The pressure control dial adjusts the level of
air pressure produced by the
power unit. For
thinner materials, (low viscosity), use lower
pressure setting. For thicker materials (higher
viscosity), use a higher pressure setting.
If you have too much overspray, decrease the
pressure setting.
PROPER SPRAYING TECHNIQUE
If spraying with an HVLP spray system is new or
unfamiliar to you. It is advisable to practice on a
piece of scrap wood or cardboard before beginning
on your intended workpiece.
SURFACE PREPARATION
All objects to be sprayed
should be thoroughly
cleaned before spraying material on them. Areas
not to be sprayed may, in certain cases, need to be
masked or covered.
SPRAY AREA PREPARATION
The spray area must be clean and free of dust in
order to avoid blowing dust onto your freshly
sprayed surface.
HOW TO SPRAY PROPERLY
1. Position the spray gun perpendicular to and 2
or more inches from the spray surface.
depending on the spray pattern size desired
2. Spray parallel to the surface with smooth
passes at a consistent speed as shown
below. Doing this will avoid irregularities in
the finish. (.i.e runs and sags)
3. Always apply a thin coat of material on the
first pass and allow to dry before applying a
second. Slightly heavier coat.
Keep stroke smooth and at an even speed.
4. Always spray area from a minimum of 50mm
(2 inches) to a maximum of 300mm (12
inches).To get an even spray distribution.
Always keep your arm at the same distance
from the surf
ace you are spraying and avoid
flex wrist while spraying.
light coat heavy coat light coat
5. When spraying, always trigger the spray gun
after spray pass has begun and release
trigger before stopping the pass. Always keep
the gun pointed squarely at the spray surface
and overlap passes slightly to obtain the most
consistent and professional finish possible.
6.
A commonly used method for spraying a
large surface is the “crisscross” pattern.
This is done
by spraying in horizontal
strips and then crossing over these strips
with vertical strips.
Avoid spraying too heavily in any one area.
Several lighter coats are better than one heavy
coat which can lead to running and dripping.
Remember that the flow control knob regulates the
amount of liquid that can be sprayed.
If runs or
drips do occur, have a dry paint brush on hand
to smooth them out.
CLEANUP
Before you begin:
When cleaning, use the appropriate cleaning
solution (warm, soapy water for latex materials;
mineral sprits for oil-based material).
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