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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