Dino-Power Airless Paint Sprayers Blog

painting your world

Browsing Posts tagged hvlp-and-airless

hvlp airless


hvlp = high volume low pressure
airless = no air
hvlp airless = electric paint spray gun kit
that’s the latest new spraying product for DIY users.
the people could use it for private DIY jobs, like home, house, wall, garden, fence, table, desk …
you can use it for water based painting and oil based coating also.
but you must need to clean it throughly everytime after using.

– Operating instructions
Mixing the paint
• Step 1: First measure the viscosity of
the paint. To do this, stir the paint well,
then dip the viscosity measurement
beaker (9) into the paint and fill to just
below the rim. Raise the beaker and
wait to see how long it takes until the
paint has drained completely (Fig. 5).
The maximum viscosity value for this
spray gun is 30 to 35 seconds.
• Step 2: Thinning the paint. If the
value is lower than 30 seconds, you
will not need to thin the paint. If the
value is greater than 35 seconds, the
paint must be thinned until a value of
between 30 and 35 is reached. Always
thin paint in small amounts using a
suitable thinner. When choosing a
thinner, observe the instructions from
the manufacturer in order to ensure
that * you are using the correct thinner
type and that the paint can be thinned.
Stir the paint thoroughly before and
after thinning. Do not thin the paint
beyond the recommendations of the
• Step 3: Sieve the colour through a
fine metal sieve or nylon stocking in
order to remove any particles that
may block the gun.
• Step 4: To remove the paint
container (1) turn it anti-clockwise
(Fig. 6). Pour the paint into the
container. Only fill the container with
paint up to the point where it starts
to narrow, then screw the container
firmly to the spray gun (Fig. 6). Make
sure that the seal (6) in the lid and
the feed hose (2) are not damaged
and are fitted correctly.
Preparing the surfaces
• Good preparation is essential for
perfect results.
• Remove any old, flaking paint and
sand the surface. The surface must
be free from dirt and grease.

– Spraying instructions
Operating elements of the spray gun
1. Spray cap (5): Releasing the securing
ring allows the direction of the air to
be set. The horizontal setting is
recommended for spraying up and
down, the vertical setting for spraying
from side to side.
2. Paint quantity regulator (8): This
regulator controls the amount of paint
released when the trigger on the handle
is pushed. The paint quantity regulator
must be set before any painting work is
carried out. We recommend that you
start with a test area.
3. Handle (12) of the spray gun: As
soon as the compressor is switched
on, the spray gun is supplied with
compressed air. The paint only flows
when the trigger (a) on the handle is
Handling the spray gun
Before you start spray painting, always
test the paint on a separate test surface.
Spray painting requires patience and
practice. You will always produce better
results if you follow these basic tips.
Holding the spray gun
Hold the gun between 150 and 200mm
from the surface (Fig. 8). If you hold the
gun too close to the surface or move
the gun too slowly the paint will run. Too
much paint will cause streaks, whilst not
enough paint will result in a thin, foggy
Operating the handle
Press the trigger on the handle to start
spraying and let go at the end of each
individual sweep. This will result in an
even surface.
General instructions for spray painting
Individual spraying movements should
always be carried out at a constant
speed. Always keep the gun at the same
distance to the surface. Avoid rocking or
circular movements. Hold the gun straight
and maintain an even distance.
Overlapping technique
When spray painting, the previous sweep
should be overlapped by about 1/3. We
recommend using a crossing pattern.
Start with horizontal sweeps and finish
with light vertical sweeps. When spray
painting larger surfaces, for example, a
fence, we recommend dividing the work
into sections of one metre. Make sure
you use the overlapping technique when
starting each new section.

Spray transfer efficiency


Transfer efficiency is critical to the spray finishing industry from both a cost and a regulatory standpoint. Although transfer efficiency is a relatively simple concept, it can lead to considerable confusion (or even deception) if it is not clearly understood. To serve your customers well, you need to know more about transfer efficiency and how it is used in the industry, beyond its simple definition.

AIR SPRAY (conventional)
Air spray Painting is the most common method for its flexibility and ease of use. Commonly It is applicated in medium and low viscosity, decorative finishes.
Transfer efficiency: 25-45%

HVLP (High Volume – Low Pressure) ” Ecological ”
HVLP is a controlled air spray technology, that limits the air pressure in the air cap in order to reduce bounce-back and over-spray. It is used to paint low viscosity and flow rates.
Transfer efficiency: 50-85%

AIRLESS (No air)
Airless spray is a high pressure spray water through a calibrated orifice. It is widely used for rapid implementation of high volumes of spraying on large surfaces, such as protective, corrosion, epoxy, etc.
Transfer efficiency: 55-70%

Air-Assisted Airless (Air-Mix)
Air-assisted airless spray combines hydraulic spray painting with air assistance. So it enables rapid implementation of spraying with better finish. Commonly it is spraying on wood, furniture, and small pieces of machinery, etc.
Transfer efficiency: 65-85%

Electrostatic Spray is a coating application method accomplished by charging atomized paint particles. It significantly reduces the over-spray, spraying in hidden, narrow places. Its increased transfer efficiency exceeds all currently known systems.
Transfer efficiency: 50-90%