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How To Properly Dial In Your Air Spray Gun

HOW TO PROPERLY DIAL IN YOUR AIR SPRAY GUN

 

 

1. ANATOMY OF AN AIR SPRAY GUN

 

Air Control Valve – This the uppermost, top control knob that regulates the amount of airflow to the horns of the air cap.  This controls the width of the spray pattern.

Fluid Control Valve – (aka “Stopper”) This middle knob dictates how much you can pull the trigger back , which controls paint flow to the tip.

Air Inlet Valve – (aka “Cheater”) This bottommost control know can be used to temporarily reduce air flow to avoid blowback scenarios

 

2.  ESTABLISHING YOUR PAINT PRESSURE

  1.  Turn off any air pressure from the pump to the gun.
  2.  Trigger release the paint into a bucket.  Now begin dialing in the pump’s pressure until the breaking point of the stream is about 6-9 inches from the tip.
  3.  Ensure a consistent gentle flow, to allow atomization air to do its job.

If you want more paint, use a larger tip – avoid increasing pressure as a means of painting faster.

If the tip size is too large, and the paint seems to drip and fall out (not achieving the 6-9″ reach), simply replace with a smaller tip.

 

3.  ADJUSTING YOUR AIR SUPPLY TO GET THE PROPER FAN WIDTH

  • Turn on the air to the gun
  • Spray a spot onto a vertical surface and then and look at it
    • People typically use a piece of cardboard or roll of paper
    • Spray horizontally
  • Spray pattern needs to be even and smooth shaped (diagram 3) and inspect the drips to ensure you have an equal amount of paint applied across the spot
  • If it is heavy at the ends (diagram 2), you’ll need to lower the air pressure at the pump.
  • If heavy in the middle (diagram 1), you’ll need to increase the air pressure at the pump.

 

FINAL THOUGHTS

Should you have any concerns or questions regarding a painting project you have coming up give our service representatives a call.  We’re always here to help!

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