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Coatings Application Troubleshooting Guide
:

 

Problem Possible Cause Solutions
Product separating
(Large areas of the product separating upon application)
Product too thin > Apply thinner coats
Review instructions on adjusting viscosity
Pot pressure too low > Increase pressure, 12 PSI
recommended
Gun pressure too low > Increase pressure, 40 to 47 PSI active recommended
Orange peel effect
(Finish has a dimpled appearance, similar to the texture of an orange peel)
Too much product > Lower product output adjustment on gun
No atomization > Increase air pressure to gun
Product too thick > Adjust viscosity level as per instructions
Dry fume
(Finish dull and rough, dry paint particles on surface)
Too much air at nozzle > Decrease air pressure to gun and /or spray closer to surface
Not enough product > Increase product output adjustment on gun
Fish eyes
(Small round depressions in the paint film, which normally appear as soon as product is applied)
Oil or grease, or silicon on surface > Clean surface thoroughly with lacquer thinner or alcohol, reapply cleaning solution as per instructions
Oil or water in air line > Drain compressor and lines.
> Drain & inspect all filters and separators.
> Switch air lines
> Clean pressure pot with lacquer and subsequently run lacquer thinner throughout spray equipment, including gun, then run cold water through equipment to rinse
Contaminated rags > Use only clean rags per job
> Do not leave rags exposed to other contaminants
Contaminated cleaning solution > Keep caps or lids on cleaning solution containers.
> If contaminated, discard solution and container appropriately.
> Prepare a new batch of cleaning solution
Silicone Contamination > Clean pieces with solvent
Bad spray pattern Air cap blocked > Clean air cap thoroughly
Nozzle blocked > Clean nozzle thoroughly
Damaged fluid needle > Replace fluid needle
Blistering/Peeling Wrong cleaner used > Apply appropriate cleaning solution
Surface Temp too Low
Surface Contamination on Part
Incompatibility between surface material and coating
> Increase surface or curing temperature.
> Clean Surface with Acetone or Scuff Surface
> Primer may be required (call AquaSurTech)
Heavy middle pattern Atomizing air too low > Increase air pressure to gun
Air cap holes blocked > Clean air cap thoroughly
Intermittent/Pulsating
spray
Worn packing > *Replace packing
Air stuffing box nut too tight > *Loosen air stuffing box nut
Loose nozzle > *Tighten nozzle
Out of product > Add product
Insufficient fluid flow Blocked fluid nozzle > Clean nozzle thoroughly
  Loss of air pressure > Check air source/hose connections
  Blocked air pressure > Clean air passage with brush
Coarse/Lumpy finish Dirt or dust on surface > Tack wipe surface
Product contains particles > Strain product before use
Runs/Sags Product too thin > Apply thinner coats
> Review instructions on adjusting viscosity
Passes too slow > Speed up at 4-6 " distance
Surface too cold > Increase surface temperature
Too much product > Lower product output adjustment on gun
Paint Leak Needle damaged > *Replace fluid nozzle
Loose nozzle/Packing set > *Tighten nozzle and packing set
Needle not closing > *Replace valve spring
Pin Holes Trapped Air > Stir coating , never shake it.
> Don't force dry too quickly, air needs to release before oven or IR exposure
* Consult your spray equipment manufacturer's operators manual for more detailed information.