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How to select a spray gun
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Spray Gun Q&A

Guide to Spray Selection

Presented here are points to note when selecting a spray gun and the answers to frequently asked questions.

Spray Gun Selection

Although Lumina takes pride in its rich lineup of automatic spray guns, we realize that the numerous types available can be bewildering when making actual selections. In keeping, we have organized the information that follows to help facilitate your selection process. Although consultation with Lumina may still be necessary, this information will assist you in bringing all your questions together.
· What kind of liquid will you be spraying?
Some spray guns (such as the ultra-mini HM series and others) are not suitable for paint and liquids that clot. If corrosion is an issue, we have spray guns made of SUS (such as the STA, STS and UA series). For adhesives and other high-viscosity liquids, special guns are available (such as the MS-8A).
· Will you sometimes be spraying a large amount and sometimes a small amount?
(How many ccs will you be releasing each time?)
The nozzle orifice will differ in kind.
· Will spraying be continuous or intermittent? About what length of time will spraying be done for and how long will breaks be?
The type of gun and compressor selection criteria will differ in kind.
· Will the spraying pattern be fan or round?
Will you be seeking to spray a small amount as widely as possible? (If so, consider the ST-5W, ST-6W and HM-1W.) Or, will you be seeking the finest spray possible? (If so, consider the PS-K, ST-5SK, or ST-6SK, among others). We have spray guns that accommodate both needs.
· About how large is the item that you will be spraying?
This will determine the spray pattern or number of guns to be used.
· Will preventing scattering be a major factor in your selection?
If so, we recommend a low-pressure atomizing model with atomized-air separation, such as the ST-6 and others.
· Should mist particles be as fine as possible?
Then spraying should be done at increased air pressure.
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