Owner`s manual

Owner’s Manual HK3819 / HK5523
Page 8
AIRLESS SPRAY PAINTING SUGGESTIONS
FIG. 3
FIG. 4
FIG. 5
SPRAY TIP SELECTION
It is advisable to obtain a spray tip recommendation from the supplier of the material to be sprayed.
The following table is a general guide and will assist in selecting the optimum tip to use.
TIP SIZE USED TYPICALLY FOR SPRAYING THESE MATERIALS APPROX. GPM Suggested filter (color)
.01 9 Exterior Latex on large unobstructed areas. .47 white
.017 Interior Latex, Exterior Latex, Shake Paint, Exterior Flat Paints. .31
.01 5 Alkyd Flat Enamel, Interior Latex, Semi-Gloss Enamel, Stains. .23
.01 3 Fine ground Gloss Enamels, and good quality Stains. .18
.01 1 Clear Varnishes and Lacquers. .12
NOTE: In order to test if a tip is worn, spray a small amount of suitable material on to a test surface and observe the spray
pattern produced on the wall. Try to obtain an even elliptical spray pattern by first adjusting the pressure down, then gradually
increasing pressure until full atomization is achieved. This should result in a crisp spray pattern with sharp edges and even
concentration, see diagram below. If a satisfactory pattern is unattainable ( look for edges to be rounded with heavier
concentration ), then the tip is worn and should be replaced. Other causes of poor spray fan are insufficient spray pressure
and material viscosity ( may requiring thinning ).
Uneven Spray Pattern
Good
Tip
Worn
Tip
NOTE: Use of excessively worn tip can result in apparent poor performance of pump.