What Causes Inconsistent Spray Pattern Width and How to Adjust It

Spray pattern inconsistency is a common issue affecting finish quality. Understanding root causes helps restore optimal performance of your air spray gun.

1. Air Pressure Imbalance

• Too high → narrow pattern

• Too low → uneven distribution

2. Blocked Air Cap Holes

Dried paint or debris can distort airflow:

• Clean with proper tools

• Never use metal objects

3. Worn Nozzle or Needle

Wear leads to:

• Irregular fan shape

• Uneven paint flow

4. Incorrect Fan Adjustment

Fan control knob directly affects width:

• Test spray on panel

• Adjust gradually

5. Paint Viscosity Issues

Too thick → narrow pattern
Too thin → overspray

6. Equipment Quality

Using a stable system like LVLP Spray Gun Strong-Power, Stable-Output ensures consistent airflow and predictable adjustments.

7. Calibration Process

1. Set pressure

2. Adjust fan width

3. Test spray

4. Fine-tune fluid control