Dirt or Seediness

Dirt or Seediness

Dust and dirt particles settle on the surface, during the application of the paint, the condition is called Dirt or Seediness.

Possible Causes


Unclean conditions in the surrounding area. Ensure that the painting area is clean.
Dust in the Spray Room or Drying Area. Rearrange equipment so that any spray dust from the booths or other workshop areas does not reach the finishing room.
Dirt in Air or Paint line of spray apparatus. Sanding near the Paint area can blow fine dust particles in the air. • Check for the Presence of dirt and oil in the paint area by spraying air from the spray gun, on a white clean cloth.
• After spraying look for any dirt or oil marks on the cloth.
Improper Thinning results in Resin Kick-Out, rendering the resin incompatible. Thin the paint perfectly with the recommended right thinner.
Paint subjected to extreme Cold results in Reduced System Compatibility or Solubility that causes seediness. • Warm the paint to reach room temperature or 25℃, prior to application.
• If the paint is still seedy, consult your coatings supplier.
Dirt in Paint Strain paint before painting.
Appearance of particles after spraying is done and not while spraying the wet film • Use a magnifier to rule out the possibility of air bubbles.
• Pour some paint on a glass surface and let it dry in dust-free area.
• After drying, examine the glass by holding it near a light source and look for the presence of any dirt or dust particles.

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