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Comments & Questions

Spray School Schedule

2008

Dirty Or Seedy Finish

 

 

CAUSE

REMEDY
A

Unclean conditions of application areas. 

  • Dust in paint room.

  • Dirt in air or paint line of spray application.

Cleanliness. Rearrange equipment so that any spray dust from booth does not reach drying chambers.
B Improper solvent which tends to throw resin out of solution. Use the proper recommended thinner.
C Material has been subjected to extreme cold which tends to throw some particles out of solution. Allow material to reach 750 F before applying. If still seedy, consult your coatings supplier.
NOTE: Always check coating with a magnifying glass to be sure there is dirt in film instead of small air bubbles. Pour coating on a clean surface like glass to assure finish is not seedy or has dirt in finish. Let it dry in a dust free area. Any contamination will show up when glass is held up to light.

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