Spray pattern faults – Spray pattern offset to one side
A spray pattern that is offset to one side can significantly impair the painting quality. This leads to uneven paint application and unclean transitions, which negatively affect the overall result. In this article, we explain the causes and show you how to solve the problem.
What does a spray pattern offset on one side mean?
A spray pattern that is offset to one side occurs when the air flow inside the spray gun is not even. This means that the material is not atomised centrally, and the spray pattern becomes asymmetrical.
Possible causes
- Horn holes or face holes are dirty: Uneven air flows at the horn holes prevent a centric air flow at the air circuit hole.
- Dirty air circuit hole: Thedirty air circuit hole causes an uneven air flow, which leads to one-sided atomisation.
Remedy
- Clean the air nozzle carefully with a suitable cleaning tool.
- If the contamination cannot be removed, replace the entire nozzle set.
Frequently asked questions
Question: Why is the spray pattern lopsided?
Answer: A spray pattern that is shifted to one side is caused by dirty horn holes, front holes or the air circuit hole. These contaminants lead to uneven air currents and faulty atomisation.
Question: How can a spray pattern that is offset to one side be rectified?
Answer: Carefully clean the air cap with a suitable cleaning tool. If necessary, replace the entire nozzle assembly to ensure optimal functionality.
For more tips and instructions on spray pattern issues, check out our daily blog series.
