Cape Silica Suppliers - supplier of various high grades of Silica Sand in the Western Cape, South Africa.

  • T: +27 21 905 6499

    F: +27 21 905 7229

  • 17 Cabernet Road,

    Saxenburg, Cape 7580

  • Mon - Thurs 8:00 - 16:00

    Fri 07:30 - 15:00

Our Services

Suppliers of high grades of Silica Sand

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What is Silica Sand?

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Appreciate the Science

Introduction Silica is the name given to a group of minerals composed of silicon and oxygen, the two most abundant elements in the earth’s crust. Silica is found commonly in the crystalline state and rarely in an amorphous state. It is composed of one atom of silicon and two atoms of oxygen resulting in the chemical formula SiO2 Sand consists of small grains or particles of mineral and rock fragments.

Although these grains may be of any mineral composition, the dominant component of sand is the mineral quartz, which is composed of silica (silicon dioxide). Other components may include aluminium, feldspar and iron-bearing minerals. Sand with particularly high silica levels that is used for purposes other than construction is referred to as silica sand or industrial sand. For a particular source of sand to be suitable for glassmaking, it must not only contain a very high proportion of silica but also should not contain more than strictly limited amounts of certain metallic elements. Silica sand is also normally required to be well-sorted, i.e. to have grains of an approximately uniform size.

Most sources of sand used by the construction industry do not satisfy these requirements and are not, therefore, suitable for glassmaking. Industrial uses of silica sand depend on its purity and physical characteristics. Some of the more important physical properties are: grain size and distribution, grain shape, sphericity, grain strength and refractoriness.

Industrial sand is a term normally applied to high purity silica sand products with closely controlled sizing. It is a more precise product than common concrete and asphalt gravels. Silica is the name given to a group of minerals composed solely of silicon and oxygen, the two most abundant elements in the earth’s crust. In spite of its simple chemical formula, SiO2, silica exists in many different shapes and crystalline structures. Found most commonly in the crystalline state, it also occurs in an amorphous form resulting from weathering or plankton fossilization. For industrial and manufacturing applications, deposits of silica yielding products of at least 95% SiO2 are preferred. Silica is hard, chemically inert and has a high melting point, attributable to the strength of the bonds between the atoms.

These are prized qualities in applications like foundries and filtration systems. Quartz may be transparent to translucent and has a vitreous lustre, hence its use in glassmaking and ceramics. Industrial sand’s strength, silicon dioxide contribution and non-reactive properties make it an indispensable ingredient in the production of thousands of everyday products.

Silica sands have a large number of other industrial uses depending on their characteristics.

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Application of Silica Sand

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We supply Silica Sand for the following:
• Water filtration

• Pool filter

• Sand blasting

• Spot blasting

• Polymer Concrete

• Horse Racing Tracks

• Tile adhesive

• Paint Fillers

• Industrial floor coating

• Waterproofing

• Golf courses

• Boreholes

• Foundry

• Glass

• Artificial grass

• Playpen

How can we help?

Please don’t hesitate to contact us and let us recommend the right Silica solution for you!