WALNUT SHELL GRITS / PLASTIC GRITS
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Reference materials of WALUNUT SHELL GRITS
Reference materials of PLASTIC GRITS
Model
ME
UR
AC
CC
PA
PC
PS
Mohs' hardness
4.0
3.5
3.2-3.5
Below 3
Below 3
Below 3
Below 3
Shape
Granular
Granular
Granular
Granular
Granular
Granular
Granular
Specific gravity:
1.5
1.5
1.15
1.31
1.13
1.2
1.05
Feature
Hardest:Its cutting
ability is the most powerful among plastic grits. Its speed cleaning
ability nears other sands.
Frequently used:Most
widely applied. The use quantity of plastic grit sand is the biggest.
Applied to various light cleaning in industry.
Durable:
Low cutting ability:
Soft and durable:
Freeze-blasting:
Soft and no cutting
ability:
Application
Substitutes glass beads
and used in cleaning and hard material such as engine parts, turbine vanes
and molds for cleaning and paint-clearing
The sand that is the
fastest in paint-clearing of aircraft, trucks, trailers, trains, minivans,
buses, and navy ships.
Blasting of aircraft
frames, trucks, trailers, trains, minivans, buses and Navy ships
In paint-
In clearing of spilt gel
of parts of bakelite category and semiconductor packaging as well as the
In clearing of rubber
and plastic spilt gel and of fine metal burr the workpiece surface will not
be damaged.
In clearing of spilt gel
of
Spilt gel clearing
V
V
V
V
V
V
V
Paint clearing
V
V
V
V
V
V
Burr removing
V
V
Lead wire support
V
V
V
V
V
V
V
Glass fiber
V
V
V
V
V
Ship
V
V
Aircraft
V
V
V
Vehicle
V
V
V
Mold
V
V
V
Engine
V
V
V
Grain
selection
12 / 16 # (1.70 - 1.20 mm)， 16 / 20 #(
1.20 - 0.85 mm)
20 (0.5 mm)
20 (0.5 mm)
18/30#
Advantage
Keeps the
precision of tolerance in sizes for parts and instruments.
Holds electroplated layers.
Harmless for surfaces of soft metal or
compound material workpieces.
Sand material can be recycled for use,
reducing the expanse of sand.
Little abrasion for machines and
instruments, reducing maintenance and repair expanses.
Unvolatile; no chemical poisonous material
or smog.
Incorrosive; no fear of change in remnant
chemicals.
No silicon dust injury; will not cause
silicosis.
Application
Spilt gel
clearing for electronic industry: pretreatment of circuit board surfaces;
spilt gel clearing of electronic parts.
Optical
detector of cleaning epoxy resin: will not make the surface opaque.
Compound
material: can clear paint on and coated layers of glass fiber, carbon fiber
and resin workpieces.
Mold
cleaning: can clean rubber, plastic, glass and die casts without compromising
the precision of mold sizes.
Paint
clearing of aircraft: clears most of aircraft paint but keep electroplated
layers.
Ships: clears
paint from hulls made from aluminum or glass fiber or wood. Can reveal and
detect bubbles on glass fiber hulls.
Burr
removing: removes fine and light burr without damaging workpiece surfaces.
Engine parts:
easy clearing of amassed carbon and paint without damaging aluminum parts
Paint
clearing vehicles: bodies of automobiles, trains, buses and trucks can be
blasted with resin grits.
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