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Air Spray Tech Consulting
How Do I adjust my Spray Pattern?
- Be able to identify all gun parts and function.
- Hook up the gun to hose connections and attach compressed air hose.
- With compressed air pressure and paint ready to spray.
- Turn the side port control air, off. (All the way in.)
- With the adjustment needle fully open. Engage the trigger. The paint should be a solid stream and should be pressurized so as to have a stream travel of about 30". Adjust trigger travel as required.
- Open the side port control valve, trigger gun to the desired width.
- Increase air pressure to the atomized air to about 35 psi. This is a starting number. Adjust as required.
- Use a testing surface to evaluate the spray gun spray pattern about 20" to 24" away from the surface, pull the trigger with the gun moving. Look at the spray pattern. The fan should be full and atomized paint particles even in shape. Adjust pressures up or down as required for atomization.
- With a gun to target distance of 8" to 12", trigger the gun and spray an area to evaluate the appearance of the paint film.
- The numbers suggested are typical and your situation may call for a different pressure set up. These are typical starting pressures.
- Rely on the spray pattern and paint film to determine the set up. Cover up the air regulator gauge. Do not depend upon a number on a gauge, rely upon the results of the paint film. Let the paint film tell you what need to be done to improve the spray pattern.
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