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Silica Sand

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SILICA SAND

Silica Sand
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Industrial Sand is an essential part of the ferrous and non-ferrous foundry industry. Because of the high silica content and our ability to meet a wide range of sand specifications, we are helping foundry customer's produce high integrity castings which are free of defects with superior surface finishes. Crystalline silica has higher melting point than iron, copper and aluminium.

This enables casting to be produced by pouring molten metal into moulds made out of silica sand and a binder, Quartz and cristobalite flours are the main components in investment casting ( also called precision casting ) for the production of specialist products such as jewelry, dental bridges, aviation turbines and golf clubs.

No. Required Properties Specified Standards

1  Size of the material 0.106 - 0.500 mm
2  Washed and dried sand  ..
3  AFS No.  45 - 50
4  Coarse Grain Size 0.300 - 0.500 mm  Max. 65 %
5  Medium Grain Size 0.150 - 0.300 mm  Max. 30 %
6  Fine Grain Size 0.106 mm  Max. 5 %
7  Moisture Content  Max. 0.20  %
8  Clay Content  Max. 0.2 %
9  pH  6.5 to 7.5
10  ADV  Max. 2.2 ml
11  Salt Content  Nill
12  Cl  Nill
13  F  Nill
14  I  Nill
15  Foreign Particles  Nill
16  % Retain 3 Consecutive sieves  Min. 85%
17  SiO2  Min. 99.4%



   
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