Guides
Choosing
paint and painting tools
There
are several paint types and painting methods that can complement
a constructed model and applying the right techniques can enhance
it significantly.
Choosing
Paints
Choice
of paint will generally be down to your own preference. Try different
types and see which you prefer. Experiment until you are happy with
the results.
Enamel
paint
is solvent-based. It can be thinned and cleaned with a number of
solvents including white spirit. It can emit strong fumes and so
should only be used in well ventilated areas. If being sprayed,
the use of a face mask is recommended.
Acrylic
paint
is water-based and so can be very advantageous to the modeller.
It can be thinned or cleaned up using water rather than a chemical
and it has a short drying time. However, acrylic paint does require
a specific solvent for thinning if being spraying.
Cellulose
paint
also has a relatively short drying time. However, solvents used
for thinning and cleaning can be harmful. Use of a good face mask
and a ventilation system is recommended during the application process.
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ABOVE: A
selection of enamel and acrylic paints and various brush sizes
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Choosing
Brushes
You
will usually be able to choose from a good range of brushes from
your local model shop.
Available
in a wide range of shapes and sizes, you will probably be faced
with a choice from basic and professional ranges. Professional brushes
are of a higher quality but, as you'd probably expect, are set at
a higher price.
As
your painting skills increase you may feel confident enough to use
specialist brushes with sable hairs. Sable brushes are very expensive
but are generally considered the best of the best by expert model
and miniature painters. If they are treated properly, sable brushes
can last for years.
Choosing
Spray Tools
Spray
tools come in various forms, from the basic aerosol can to the expensive
airbrush.
Aerosol
Can
Made by many different manufacturers and variable
in quality. Available from model shops, hardware stores and car
repair shops. They contain a ready-mixed paint which is dispensed
from a press down nozzle at the top of the can. The disadvantages
are that you have little or no control over the spray pattern and
nozzles are prone to clogging, resulting in paint spatter that can
ruin an application. Suitable for undercoating and covering large
areas. Useful trigger handles that fit around the nozzle are available.
Spray
Gun
Powered
by a replaceable propellant can, the spray gun is a nozzle which
releases an air and paint mixture. Ideal for coating models with
specially mixed colours. A good purchase for the beginner and average
modelmaker.
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TOP:
Airbrush and components
BOTTOM FROM LEFT: Spray gun with propellant can and components,
aerosol cans
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Airbrush
They are basically small versions of the spray
gun, applying paint in much smaller spray pattern. They can be bought
singularly or in sets and are usually one of two types - single
or double action. This refers to the operation of the lever that
releases the air and paint mixture. Single action levers release
both air and paint at the same time, with the amount of paint released
being adjusted by a separate control. Double action airbrushes require
two movements, one to release the air and another to release the
paint. A movement of the lever which combines the two (usually down
for the air and backwards for the paint) will release the paint.
Airbrushes
are powered by air and this can be provided by a number of sources.
Propellant cans are ideal for the beginner. They are simple to use
but can prove expensive if there's a lot of spraying to be done.
Compressors are available in a number of guises. Ordinary compressors
come without expansion tanks or regulation and tend to be noisier
than the more expensive type (that said, they are more than adequate
for the average modeller). Other compressors have them built in.
The regulator allows you to control the pressure at which the air
is released to the airbrush, and the expansion tank eliminates the
'pulsing' effect that you can experience from piston-type compressors.
Pulsing shows itself in uneven spurts of air reaching the airbrush
with can prevent you from getting an even spray pattern. This can
be reduced by using longer hose between the compressor and the airbrush.
The
best compressors are powered by motors that are as quiet as those
you get on kitchen fridges. They feature built-in expansion tank,
pressure regulator and water trap. Water traps are used to catch
the water generated by condensation inside the compressor and hose.
If this water finds it's way to the airbrush it can ruin a paint
finish. In-line water traps are available for compressors without
them and are recommended.
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