WAGNER CONTROL SPRAY Manuel du propriétaire Page 5

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Spraying Methods
Air-Assisted Airless
Electrostatic Spray
Air-assisted airless sprayers offer fine finish capabilities combined with
a medium production rate. Air-assisted technology uses a combination of
airless and air spray. Fluid pressure ranges from 700 to 900 PSI, with air
intermixed at 15 to 30 PSI. The systems typically are found in stationary
and portable fine finish production applications. Transfer efficiency for
air-assisted airless ranges from 40 to 65%.
Electrostatic spray systems charge the paint at the tip. The charged particles
move within the electrostatic field, which is attracted to the grounded object,
forming an even coating on its entire circumference. When used properly, the
result can be high transfer efficiency with uniform mil thickness.
A variety of electrostatic systems are available, including conventional airless
and air-assisted. Applications include chain link fences, wrought iron, lockers,
and metal office furniture.
When to use HVLP Equipment
HVLP equipment is classified as a finishing tool. It is not designed to be used
for covering large, flat surfaces, except when using specialty coatings, such as
multi-spec, or where overspray may be hazardous.
HVLP systems are designed to cut labor time, minimize waste, and improve
the final finish on the substrate. In addition to enhancing profitability, in
many states HVLP is compliant with the most stringent transfer efficiency
requirements. For this reason, you can expect the HVLP sprayer market will
continue to grow at an accelerated pace.
HVLP Applications Include:
HVLP Features:
Touch-up
Dentil molding
Crown molding
Cabinets
Door jambs
Elevator doors
Frames
Bi-fold doors
Implement equipment
Six-panel doors
Appliances
Porcelain
Furniture
Lockers
Shutters
Dividers
Gutters
General maintenance
Wicker furniture
Shelving
Pipes
Multi-color finishes
Louvered doors
Overhangs
High transfer efficiency
Minimal bounceback
Sprays most materials
Reduced prep and clean-up
Affordable
Inexpensive to maintain
Controlled spraying
Portability
Reduces material consumption by 40%
Three spray patterns available
Works from 15-amp service
Cuts labor time
Sprays patterns from
1
/
4
" to 12"
Low fluid pressure means low wear
Moisture-free atomizing air
3
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