Silica Sand
Washed, dried and screened natural silica sand with high SiO₂ content. Available in 14 controlled gradations — from fine 90–110 AFS to coarse 3–5 mm fractions — each supplied with a batch-based analysis certificate.
What is Silica Sand?
Silica sand is the base raw material for making moulds and cores in the casting of iron, steel and non-ferrous metals. Because it must withstand the high temperature of molten metal, it requires high refractoriness, dimensional stability and a controlled grain distribution. For this reason, foundries use high-SiO₂, low-clay silica sand — typically fractions in the 50–70 AFS range.
Silica sand (also known as quartz sand) is a natural mineral sand composed mainly of SiO₂ crystals. Our products have a typical SiO₂ content of 96.3% and an Fe₂O₃ content of 0.18%, which means high chemical stability and low impurity. The raw material is put through multi-stage washing, drying and screening to reach the required grain-size distribution and near-zero moisture. With a Mohs hardness of 7 and a density of 2.65 g/cm³, it delivers long service life in high-abrasion applications. It is supplied dry or moist, in bulk, big-bag or 25 kg bags as required.
Technical summary & chemistry
Values are typical batch figures; a current batch analysis report is provided with each shipment.
Technical Summary
- Grain size
- 0.063 mm – 5 mm (14 fraksiyon)
- Certificate
- TS EN 12904
Chemical Composition
- SiO₂
- 96.3%
- Fe₂O₃
- 0.18%
- Al₂O₃
- 0.77%
- Moisture
- 0%
- LOI (loss on ignition)
- 0.02%
- Hardness
- Mohs 7
- Density
- 2.65 g/cm³
- Sintering point
- 1500 °C
Fractions & sieve analysis
Produced in 14 controlled gradations; grain ranges are listed for each fraction below.
For fractions that include a sieve analysis, click the row to view the retained % values.
Fine Series (AFS)
8 fractionsFraction
6 fractionsWhere is it used?
Used as core and moulding sand in the foundry industry; the 50–70 AFS fractions are preferred where high refractoriness and thermal stability are required.
Used as building-chemicals sand in tile adhesives, joint grouts, façade profile production and precast/GRC applications, providing homogeneous colour and high grain hardness.
In glass production, high SiO₂ content and low iron are critical for obtaining clear, high-quality glass.
In drinking-water and pool treatment beds, controlled-gradation silica filter sand traps suspended solids for effective filtration.
In shipyard and metal surface preparation, dust-free 0.5–2 mm fractions serve as sandblasting sand with high abrasive power.
Washed, dust-free and safe natural quartz sand is used for artificial turf, manège, beach volleyball and children's play areas.
Fully controlled fractions provide high mechanical strength and slip resistance in industrial epoxy floor coatings.
Graded silica sand is used in precast and ready-mix concrete elements for surface quality, homogeneous colour and strength.
For equestrian manège floors, its elastic, well-draining and dust-free structure provides a comfortable surface for horse and rider.
Washed, rounded, dust-free and hygienic silica sand is offered for children's play pits and sandboxes.
About Silica Sand
What micron size does silica sand come in?
Our range runs from 63 µm fine (micronised, 90–110 AFS) up to 5 mm coarse (3–5 mm fraction). We determine the right micron range together according to your application.
What is the AFS value and which fraction should I choose?
The AFS (American Foundry Society) number expresses the fineness of the sand; the higher the number, the finer the grain. Typically 50–70 AFS is preferred for foundry, 0.5–2 mm for sandblasting and 20–70 AFS for building chemicals.
What is the SiO₂ content of silica sand?
The typical SiO₂ content of our silica sand products is 96.3%. All chemical values are typical; a real batch analysis certificate is supplied with every shipment.
What determines the price of silica sand?
Price varies with the fraction, packaging (bulk, big-bag, 25 kg bag), quantity and delivery location. Send us your requirement and we will get back to you quickly with a quote.
What can you rely on?
Batch-based analysis
Grain size and chemical composition are reported with every shipment.
Consistent quality
Production at our own facility; consistent batch-to-batch results.
Flexible packaging
Bulk, big-bag or sack — delivered to suit your requirement.
Free sample
We provide a sample and technical support before you decide.
Consider together
Get a quote for Silica Sand
Tell us what you need; we will get back to you quickly with the right grain size, packaging and shipping.