Resources
9 Common Mistakes to Avoid
When Using ROXGEN Spray Guns
Incorrect
Air Pressure Settings
Too
high
Excessive overspray, paint waste, uneven finish
Too low
Poor
atomization, orange peel effect
Recommended
HVLP
1.5-2.5 bar / Conventional 3-4 bar / Middle pressure 2~2.5 bar
Too
small
Clogging, sputtering
Too large
Drips,
uneven coating
Recommended
Fine finish：1.2-1.4mm
General coatings：1.5-1.8mm
Heavy
materials：1.8-2.5mm
Using
the Wrong Nozzle Size
Incorrect
Spraying Distance & Angle
Too
close
Runs,
sagging
Too far
Poor coverage, dry spray
Wrong angle
Uneven
distribution, shadowing
Recommended
15-25
cm distance, 90° angle to surface
Too
much
Excessive
build-up
Too
little
Striping,
weak coverage
Recommended
50%
overlap per stroke
Poor
Overlapping Technique
Unfiltered
or Incorrectly Mixed Paint
Impurities
clog the nozzle
Excessive
build-up
Wrong
viscosity
Clogs
if too thick, poor coverage if too thin
Recommended
Strain
paint and adjust viscosity properly
High
humidity (>80%)
Blushing,
poor adhesion
Too
cold/hot
Drying
problems, cracking
Recommended
Ideal:
15-30°C, humidity <60%, well-ventilated
Spraying
in Bad Conditions
Poor
Cleaning & Maintenance
Uncleaned
Residue
build-up, stiff trigger
Hard brushes
Damage
nozzle
Recommended
Clean
with suitable solvent, soft brushes, lubricate regularly
Fine-finish
gun
Clogging
with heavy paint
Industrial
gun
Excessive
overspray for detail work
Recommended
Match
gun type to the job: HVLP, Conventional, Airless
Using
the Wrong Spray Gun for the Job
No
Proper Safety Equipment
No
respirator
Inhalation
risks
No
goggles/gloves
Skin,
eye irritation
Recommended
Wear
respirator, goggles, gloves; ensure good ventilation