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| ST FILLER is our own product made from high purity inorganic powder and additives.. ST Filler is white functional filler containing high quality clay and various inorganic fillers as base materials, specially featured for engineering plastics and precise rubber parts. |
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ST FILLER produced under our strict Quality Control system improves not only mechanical properties and water resistance, but also yield percentage of its finished products as it does not contain coarse particles, iron powder, etc.
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- LINE UP
Properties and characteristics of ST FILLER
- CUSTOM MADE (1)
Modification for inorganic filler by coating organic chemicals.
- CUSTOM MADE (2)
Modification of the Powder properties (mixing, milling, classification･･･)
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LINE UP |
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| ST FILLER is our own product made from high purity inorganic powder and additives.. ST Filler is white functional filler containing high quality clay and various inorganic fillers as base materials, specially featured for engineering plastics and precise rubber parts. |
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| ST FILLER produced under our strict Quality Control system improves not only mechanical properties and water resistance, but also yield percentage of its finished products as it does not contain coarse particles, iron powder, etc. |
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| ST Filler - Major grades: |
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| Products |
Components |
Features |
| ST-301 |
Hard Clay / Amino Silane |
Very low coarse-grained perticles
improving modulous and hardness higher |
| ST-309 |
Hard Clay / Mercapto Silane |
improving oil resistance and water resistance
reduction of permanent deformation |
| ST-501 |
Sericite / Amino Silane |
sheet figured filler
high gass barrier property |
| ST-509 |
Sericite / Mercapto Silane |
sheet figured filler
high gass barrier property |
| ST-100 |
Calcined Kaolin / Amino Silane |
Very low coarse-grained particle and Moisture
High Young's modulous in flexure, Deformation
under heat and water repellency |
| ST-KE |
Calcined Kaolin / Vinyl Silane |
Very low coarse-grained fraction
water repellency and insulation property |
| ST-CROWN |
Classified Hard Clay |
reinforcement of rubber
Very low coarse-grained particle |
| ST-C219 |
Classified Celite |
Very low coarse-grained particle |
| ICEBERG K |
Classified Calcined Clay |
High whiteness, Low moisture and
coarse-grained particle |
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| POWDER PROPERTY OF ST FILLER |
| Property |
Whiteness |
pH |
Heat Ignition Loss
(%) |
Residues on 90μm sieve
(%) |
Average Particle Size*
(μm) |
| Products |
| ST-301 |
75 |
7.5 |
0.8 |
0.000 |
0.7 |
| ST-309 |
75 |
5.0 |
0.8 |
0.000 |
0.7 |
| ST-501 |
68 |
7.5 |
0.8 |
0.020 |
7.0 |
| ST-509 |
68 |
5.0 |
0.8 |
0.020 |
7.0 |
| ST-100 |
92 |
7.8 |
0.15 |
0.000 |
3.5 |
| ST-KE |
90 |
7.5 |
0.15 |
0.000 |
3.5 |
| ST-CROWN |
75 |
5.0 |
0.8 |
0.000 |
0.7 |
| ST-C219 |
87 |
9.8 |
0.15 |
0.000 |
9.0 |
| ICEBERG K |
92 |
5.5 |
0.15 |
0.000 |
3.5 |
| ST-MISTRON |
83 |
9.5 |
0.15 |
0.000 |
5.5 |
| * Microtrac HRA X-100 |
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 Top of Page |
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CUSTOM MADE (1) |
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Modification for inorganic filler by coating organic chemicals. |
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In addition to ST Filler for rubber and plastics, we can offer you the following surface treated fillers:-
You can select your favorite fillers and coating agents.
Please feel free to contact us whenever you need trial products with test data.
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| Purpose |
Base Filler |
Application |
Coating Agents |
| high mechanical property, oil resistance, water resistance and good dispersion |
Hard Clay |
sealing rubber,
electric wire |
Silane Coupling Agent |
| Calcined Clay |
some rubbers and
engineering plastics |
| Anhydrous Silica |
some rubbers and
engineering plastics |
| Alminum Hydrooxide |
flame-retardant treatment
for polyolefine |
| Magnesium Hydroxide |
flame-retardant treatment
for polyolefin |
high water
repellency |
Calcium Carbonate |
polyolefin, etc･･･ |
Silicone Oil |
high dense stacking,
good dispersion |
Clay, Talc |
polyolefin, etc･･･ |
Organic Titanate |
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| Top of Page |
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CUSTOM MADE (2) |
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Modification of the Powder properties (mixing, milling, classification･･･) |
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| In addition to surface treatment of powder, we can offer you mixing, milling and classifying of powder products upon your request. Please feel free to contact us for our trial products and test data.
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| MIXING TYPE |
| Purpose |
Base Filler |
Application |
Additional Process |
| fine mixing |
Mica and Talc |
raw material of cosmetics |
Coating by Fine Grained Polymer |
| powderization from liquid |
Anhydrous Silica |
engineering plastics |
Coating by Silicone Oil |
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| MILLING AND CLASSIFYING TYPE |
| Purpose |
Base Filler |
Application |
Effects |
| removal of coarse-grained particle and inpurities |
Hard Clay |
sealing material for
special rubber |
boost yield |
| Celite |
| Calcined Clay |
rubber products for
electronics |
| arranging coarse-grained particle |
Hard Clay |
fine roll and rubber products |
| Calcined Clay |
thin rubber sheet |
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