General Information Grex Tritium Series Owner’s Manual
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3. GENERAL INFORMATION
3.1 Compressors and Air Pressures
Choosing an appropriate air compressor that supplies sufficient
air flow ensures the ability to take full advantage of the versatile
spray characteristics of your Grex airbrush. Working pressures can
vary from 4 to 80 psi depending on the type of work and what
textures are desired. Paint viscosity and fluid nozzle opening size
can affect optimal working pressures. In general, thicker and higher
viscosity paints require higher pressures. Thick paints may require
45 psi or higher, while thinner paints may only need 18 to 25 psi.
It is strongly recommended that you use air filters, moisture
traps, and pressure regulators as part of your airbrush system.
Having clean, dry air enables optimal performance, provides
hassle-free maintenance, and prolongs the life of your airbrush.
Note: Use of the siphon aachment requires relatively higher
operating pressures than gravity feed cups.
3.2 Paint Preparation
Your Grex airbrush comes standard with Teflon packings which
allows most paints to be used with the airbrush. This includes, but
is not limited to, food dyes, acrylics, textile paints, makeup,
lacquers, and urethanes.
Proper paint preparation is needed for best performance. Paint
must be reduced using the proper solvent (manufacturer
recommended) and mixed thoroughly. Always filter the paint
through a fine nylon mesh to remove clumps and chunks that can
disrupt consistent spray and block the minute passageways in the
airbrush.
Warning: Always wear proper protective gear and clothing (such
as goggles, respirator, dust mask and gloves). Work in a well
ventilated area, especially when using urethane and enamel based
paints. Follow all instructions that come with your paint, and use
the reducers recommended by the paint manufacturer.
3.3 Airbrush System Setup
Aach any desired accessories, such as moisture traps, filters,
regulators, etc., to your compressor and/or airbrush depending on
your setup. Connect an air hose between the compressor and
airbrush while using the appropriate adapters where necessary.
Refer to Section 8 “Accessories” to learn more about adapters that
may be needed for your system setup. Adjust air pressures
according to paint type and desired spray characteristics. Check for
any air leaks from the compressor and air hose. Then fill the paint
reservoirs or boles with paint when ready to use.
