Spray Pattern Quality; Spray Angle; Aiming Sprayer; Triggering Timing - Graco Project Series Owner's Manual

Spraying

Spray Pattern Quality

A good spray pattern is evenly distributed
without voids or runs. Adjust sprayer Speed
Control (if available), hand speed, and distance
from the wall to get a good spray pattern.
If tails persist, material may need to be
thinned. If material needs to be thinned,
follow manufacturers recommendations.
Good Spray Pattern

Spray Angle

Use a piece of scrap cardboard to practice
these basic spraying techniques before you
begin spraying the surface.
•
Hold sprayer 10-12 inches (25-30 cm)
from surface and aim straight at surface.
Tilting the sprayer to direct the spray
angle causes an uneven finish.
10-12 in. (25-30 cm)
parallel from surface
10-12 in.
(25-30cm)
EVEN FINISH
18
Bad Spray Pattern
TAILS
TAILS
Spraying at an angle
results in uneven finish
Thick
UNEVEN FINISH
•
Flex wrist to keep sprayer pointed
straight. Fanning sprayer to direct spray
at angle causes uneven finish.
NOTE: How fast you move the sprayer will
affect spray application. If material is
pulsating, you are moving too fast. If material
drips, you are moving too slow. See
Troubleshooting, page 26.
EVEN FINISH

Aiming Sprayer

Aim the sprayer at the bottom edge of the
previous stroke, overlapping each stroke by
50%.

Triggering Timing

Pull Trigger after starting stroke. Release
Trigger before end of stroke. Sprayer must
be moving when Trigger is pulled and
released.
THIN THIN
THICK
3A9402B