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BSTM 1250,800,625,325 (Superior Pigment Extender)
■ PRODUCT DESCRIPTION
BSTM 1250, 800, 625, 325 barytes products are made using only the highest quality bright white, natural barium sulfate ore. Their unique properties of fine grind, high specific gravity, low solubility, high brightness and chemical inertness make them ideal for many applications.
■ APPLICATION
BSTM 1250, 800, 625, 325 barium sulfates are an excellent choice in many applications. These include automotive primers and topcoats, gloss enamels, powder coatings, semi-gloss and gloss latexes, industrial and architectural coatings to name a few. Our products can be used as excellent fillers in many plastics, ceramics, friction materials, and rubber goods. Other uses include plastisols, adhesives, latex products, urethane foams, acoustical compounds, insulating materials, and sound attenuation products.
■ PRODUCT SPECIFICATION
1. BSTM1250
● CHEMICAL ANALYSIS
| UNIT | TYPICAL VALUE | MIN | MAX | TEST METHOD | |
| BaSO4 | % | 97.00 | GB 6755-88 2.1 | ||
| Fe2O3 | 0.04 | ||||
| Al2O3 | % | 0.02 | GB 6755-88 2.2 | ||
| CaO | 0.15 |
● PARTICLE SIZE DATA
| Average Particle Size (d50) | micron | 1.60 | 2.00 | ||
| Top Cut (d97) | micron | 8.00 | |||
| Wt.% retained on 325 mesh screen |
0.00 | ||||
| Hegman Fineness | 7.00 | 8.00 |
● PHYSICAL PROPERTIES
| Specific Gravity Bulk Density |
g/cm³ | 4.35 | 4.4 | ||
| Loose | 1.1 | ||||
| Compacted | 1.8 | ||||
| Oil Absorption | 11 | ||||
| Whiteness % | 93 | ||||
| pH | 8 | CSTM-05 | |||
| Total Silicates | % | 0.5 | |||
| Heavy Metal | % | 0.01 | |||
| Water Soluble Salts | % | 0.15 | |||
| Moisture | % | 0.1 | |||
| Ignition Loss | % | 0.5 |
2. BSTM800
● CHEMICAL ANALYSIS
| UNIT | TYPICAL VALUE | MIN | MAX | TEST METHOD | |
| BaSO4 | % | 97.00 | GB 6755-88 2.1 | ||
| Fe2O3 | 0.04 | ||||
| Al2O3 | % | 0.02 | GB 6755-88 2.2 | ||
| CaO | 0.15 |
● PARTICLE SIZE DATA
| Average Particle Size (d50) | micron | 2.80 | 3.00 | ||
| Top Cut (d97) | micron | 23.00 | |||
| Wt.% retained on 325 mesh screen |
0.00 | ||||
| Hegman Fineness | 7.00 | 8.00 |
● PHYSICAL PROPERTIES
| Specific Gravity Bulk Density |
g/cm³ | 4.35 | 4.4 | ||
| Loose | 1.15 | ||||
| Compacted | 2.05 | ||||
| Oil Absorption | 11 | ||||
| Whiteness % | 93 | ||||
| pH | 8 | CSTM-05 | |||
| Total Silicates | % | 0.5 | |||
| Heavy Metal | % | 0.01 | |||
| Water Soluble Salts | % | 0.15 | |||
| Moisture | % | 0.1 | |||
| Ignition Loss | % | 0.5 |
3. BSTM625
● CHEMICAL ANALYSIS
| UNIT | TYPICAL VALUE | MIN | MAX | TEST METHOD | |
| BaSO4 | % | 97.00 | GB 6755-88 2.1 | ||
| Fe2O3 | 0.04 | ||||
| Al2O3 | % | 0.02 | GB 6755-88 2.2 | ||
| CaO | 0.15 |
● PARTICLE SIZE DATA
| Average Particle Size (d50) | micron | 3.60 | 4.00 | ||
| Top Cut (d97) | micron | 14.00 | |||
| Wt.% retained on 325 mesh screen |
0.00 | ||||
| Hegman Fineness | 6.00 | 7.00 |
● PHYSICAL PROPERTIES
| Specific Gravity Bulk Density |
g/cm³ | 4.3 | 4.4 | ||
| Loose | 1.2 | ||||
| Compacted | 2.15 | ||||
| Oil Absorption | 10 | ||||
| Whiteness % | 92 | ||||
| pH | 8 | CSTM-05 | |||
| Total Silicates | % | 0.5 | |||
| Heavy Metal | % | 0.01 | |||
| Water Soluble Salts | % | 0.15 | |||
| Moisture | % | 0.1 | |||
| Ignition Loss | % | 0.5 |
4. BSTM325
● CHEMICAL ANALYSIS
| UNIT | TYPICAL VALUE | MIN | MAX | TEST METHOD | |
| BaSO4 | % | 97.00 | GB 6755-88 2.1 | ||
| Fe2O3 | 0.04 | ||||
| Al2O3 | % | 0.02 | GB 6755-88 2.2 | ||
| CaO | 0.15 |
● PARTICLE SIZE DATA
| Average Particle Size (d50) | micron | 9.00 | 10.00 | ||
| Top Cut (d97) | micron | 32.00 | |||
| Wt.% retained on 325 mesh screen |
0.50 | ||||
| Hegman Fineness | 4.00 | 5.00 |
● PHYSICAL PROPERTIES
| Specific Gravity Bulk Density |
g/cm³ | 4.3 | 4.4 | ||
| Loose | 1.6 | ||||
| Compacted | 2.4 | ||||
| Oil Absorption | 9 | ||||
| Whiteness % | 92 | ||||
| pH | 8 | CSTM-05 | |||
| Total Silicates | % | 0.5 | |||
| Heavy Metal | % | 0.01 | |||
| Water Soluble Salts | % | 0.15 | |||
| Moisture | % | 0.1 | |||
| Ignition Loss | % | 0.5 |
■ TYPICAL PARTICLE SIZE DISTRIBUTION
