Troubleshooting
44
310964B
Troubleshooting
Spray Finish Problems
Problem
Cause
Solution
Orange peel finish - Paint surface not
smooth
Pain droplets too large
•
Maintain proper spraying
distance, page 26.
•
Keep turbine air filters clean to
allow full air flow.
•
Do not use an air hose that is too
long to provide sufficient
atomization pressure.
•
If droplets are still too large,
reduce fluid.
Paint droplets drying too fast to
properly flow out of gun
Keep object being sprayed out of
direct sunlight. When spraying in
warmer temperatures, use a slower
evaporating solvent or a retarder.
Cold weather spraying
Keep fluid and object being sprayed
as close to room temperature as
possible. When spraying on a cold
surface, most paints will become too
thick to flow properly.
Blushing - clear coatings appear
milky
Moisture condensation is trapped in
lacquer when spraying in hot, humid
conditions
•
Allow turbine to warm up a few
minutes before spraying.
•
Store lacquer off concrete floors,
at room temperature.
•
Apply lighter coats and allow for
proper drying time.
•
Use a slower evaporating solvent
or retarder.
•
Do not spray in windy conditions.
Fish eyes - small pools on painted
surface that will not fill
Silicone contamination from
lubricants, grease, polish, or waxes
on the surface being sprayed
Clean all parts with a cleaning
solvent; use a solvent rag and a
clean rag to wipe with. Replace rags
as needed. If problem persists, use a
fish eye eliminator.
Runs and sags
Applying too much paint per pass for
the drying conditions
•
Move gun faster or decrease fluid
flow.
•
Maintain proper spraying
distance, page 26.
•
Reduce amount of thinner or use
a faster drying thinner.
Solvent pops or bubbles
Sprayed surface drying before
solvent gas can be released
•
Apply fluid in lighter coats to
allow for proper evaporation.
•
Use the recommended thinners.
•
Follow the solutions for Orange
Peel Finish, Paint Droplets Too
Large in this Troubleshooting
Table.
