4
SANDBLAST SYSTEM
OPERATOR’S MANUAL
Shark Sandblast System
•
97-612 • Rev. 3/06
GENERAL OPERATING
TECHNIQUES
Use the correct size pressure washer with the
Sandblast System. The 4-011201S and 4-011211S
Sandblast System should be used with a pressure
washer rated at 4-6 gpm @ 2000-3500 psi. If the pres-
sure washer being used requires a nozzle other than a
#6, replace it with a 0° 1/4" nozzle of the proper size.
Keep sand, sand hose, probe and pot dry. Wet sand will
not draw properly, causing clogs to form.
Proper size and type of abrasive is important. Silica sand
is the most universal type of abrasive. It is normally avail-
able in grits of 16 to 60 (30 being the most common).
Remember, the coarser the grit the quicker the job, how-
ever a coarse grit (such as #16) also leaves the most
pitted surface. For best results experiment with different
grits.
Any kind of sandblasting opens metal up to corrosion
and flash rusting. A rust inhibitor prevents or delays cor-
rosion and should be applied shortly after using a hand
sprayer.
Begin blasting with the nozzle 12 to 18 inches away from
the work surface. For best results, adjust the distance
as required.
To conserve the amount of sand being used, you may
reduce the sand flow by opening the valve on either the
sand wand or the sand pot.
SANDBLASTING MATERIAL
Sand Mesh
Sand mesh refers to the size of sieve through which a
particular grade of sand will pass. A 16/50 mesh means
that normally most of these particles will pass through a
#16 sieve and a very small percentage will pass through
a #50 sieve.
Note:
A #16 sieve is a mesh that has sixteen
0.046 sq. in. (1.19mm) openings per inch.
Round Sand
A grain of sand with rounded edges. River sand is a good
example of sand worn to a rounded shape by water.
Angular Sand
Sand with angular shaped edges. Crushed rock or
crushed sand is usually of this type.
Blasting Angle and Distance
The blasting angle can affect the nozzle distance. For
best sandblasting performance, always maintain the rec-
ommended blasting angle and proper distance from your
work surface.
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Summary of Contents for 4-011201S
Page 11: ......