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4.2 Your Choice of Coatings and Viscosity
Extremely thin, watery or light bodied fluids such as inks, aniline dyes and oil stains can generally be used straight from t he
can. RTS or Ready to Spray water based finishing products are formulated to be used straight from the can without thinning
with a 3 stage or larger turbine. Most other coating products will need to be thinned anywhere from 10% to 50% depending
on the available air pressure of the turbine model and the properties of the coating selected. (see chart below).
Chart A Turbine Performance
Turbine Size
Sealed Air Pressure
Coating Types
3 STAGE
7.0 PSI
Low-Medium Viscosity Materials
4 STAGE
9.0 PSI
Low-High Viscosity Materials
5 STAGE
10.0 PSI
Low-High Viscosity Materials
Using Latex (Emulsion) Paint
Although your turbine spray system is best suited to spray Class A Finish coatings such as lacquers, enamels, urethanes,
varnishes, waterborne and water base etc., you can spray latex (emulsion) house paint if you follow a few simple rules. First , it
is generally necessary to thin latex (emulsion) paint. This will vary from as little as 10% to as much as 50% depending on the
model turbine you are using and the quality of the paint used. Second, it is necessary to use a larger nozzle and needle set
in the spray gun (2.0mm or 2.5mm). It is recommended that a latex (emulsion) paint conditioner like Floetrol®, be added to aid
flow-out. These products are sold at local paint stores.
Chart B Nozzle, Needle And Air Caps For 7500 Series Spray Guns
Tip/Needle Size
Application
Air Cap
0.8MM (.029)
Inks, Dyes, Stains, extremely thin viscosity fluids,
Water based finishes
A
1.0MM (.039)
All purpose, thin lacquers, thin enamels, Water based
finishes, Automotive, Marine, Airplane finishes
B
1.3MM (.051)
All purpose, thin lacquers, thin enamels, Water based
finishes, Automotive, Marine, Airplane finishes
B
1.5MM (.059)
Catalyzed lacquers, Conversion Varnish, Primers,
Water based finishes, Automotive, Marine, Airplane
finishes, Varnish, High Viscosity B
OR C Industrial Coatings, Urethanes, Enamel,
B or C
1.8MM (.070)
Catalyzed lacquers, Conversion
Varnish, Primers, Automotive,
Marine, Airplane finishes, Varnish,
High Viscosity Industrial Coatings,
Urethanes, Enamel
C
2.0MM (.079)
Thinned Latex (Emulsion) Paint, Multispec, Heavy
Primers, Butyrate, Nitrate
Dope, C High Viscosity Industrial
Coatings
C
2.5MM (.098)
Thinned Latex (Emulsion) Paint, Multispec, Solvent
adhesives, Wax based strippers
D
