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Spray Pattern Troubleshooting
How to Fix an Irregular Spray Pattern
Video shows what an irregular pattern looks like and explains how to eliminate the problem while painting with an air assist spray gun.
An irregular or U-shaped pattern can be produced by a dirty or plugged air cap. This can result in uneven coverage and poorly blended finishes.
These patterns also tend to decrease cap cleanliness, creating the need for frequent cleaning.
After you have cleaned the air cap and tip, check to insure that the irregular or U-shaped pattern issue has been resolved.
Possible Reasons
Spray tip partially plugged
Dirty or plugged air cap holes
Best Solution
Clean or replace tip
Clean or replace air cap
Test different types of air caps
Why is It Important?
Even / blended finish
Even 50 percent overlaps
Even paint thickness and coverage
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