Opta Waive
Silica Sand

Barco Silica Sand

Mined and manufactured to the high standards of U.S. Silica's ISO 9001 Certified Quality System Air sized and blended to meet the most demanding foundry specification.

In foundry application, the medium grades: #49, #56, #63 offer high permeability due to excellent fines control and are ideal for most core and molding applications in iron, steel and non-ferrous foundries. They also offer high strength in all binder systems.

The finer grades: F 71 consist of rounded to sub-angular grains, which provide high strength and excellent permeability. They achieve superior casting finishes in all binder systems and metals.

Advantages of Barco Silica Sand

  • ISO 9001 Certified
  • High strength, superior casting finishes in all binder systems and metals

BARCO SAND SPECIFICATIONS

Mesh mm #32 #49 #56 #63 #71 #125 #290
16 1,180              
20 0,850 < 1            
30 0,600 25 < 1 < 1        
40 0,425 38 11 4 4 1    
50 0,300 27 34 21 17 9    
70 0,212 8 37 41 32 30    
100 0,150 2 15 27 31 35    
140 0,106 < 1 3 6 14 20 1 1
200 0,075   < 1 < 1 2 4 4 4
270 0,053       < 1 < 1 11 11
325 0,045           6 7
PAN 0           78 77

Technical Specifications

Symbol Name Percentage
SiO2 (total) (Crystalline Silica) 99.70%
Al2O3 (Aluminum Oxide) 0.14%
Fe2O3 (Iron Oxide) 0.016%
K2O (Potassium Oxide) 0.04%
Na2O (Sodium Dioxide) < 0.01%
MgO (Magnesium Oxide) < 0.01%
CaO (Calcium Oxide) < 0.01%

Characteristics

  #32 #49 #56 #63 #71 #125 #290
Colour White White White White White White White
AFS-GFN 32.5 49.0 56.0 63.0 71.0    
Mineral Quartz
Solubility Insoluble
Specific Gravity 2.65
Bulk Density (aerated) 99 lb/ft3
Grain Shape Sub-angular
Hardness 7 Mohs (see our hardness index)

Packaging:

  • 55 lb paper bags/100 lb paper bags
  • Super Sacs
  • Bulk (blower truck or rail hopper cars)

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Warning: The product contains crystalline silica - quartz, which can cause silicosis (an occupational lung disease) and lung cancer. For detailed information on the potential health effect of crystalline silica - quartz, see our MSDS.

Disclaimer: The information set forth in this Product Data Sheet represents typical properties of the product described; the information and the typical values are not specification. Opta Minerals makes no representation or warranty concerning the Products, expressed or implied, by the Product Data Sheet