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Coatings Application Troubleshooting
Guide
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| 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.
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