Rounded grain silica sand for foundry casting, glass manufacturing, and water filtration.
Golden I Minerals operates state-of-the-art silica sand washing and grading facilities, producing high-purity industrial sand with a superior SiO2 concentration. Characterized by optimally rounded grains and precise sizing, our silica sand is crucial for high-performance applications.
Our intensive washing and de-sliming processes eliminate clay, silt, and iron contaminants, yielding a clean, dry, and uniformly graded product trusted by foundries, glassmakers, and construction firms globally.
We process our sand into highly specific grades to optimize our clients' operational efficiency:
| Parameter | Standard Value |
|---|---|
| Silica (SiO2) | 96 - 99% |
| Iron Oxide (Fe2O3) | < 0.05% |
| AFS Grain Fineness Number | 40 to 80 |
| Moisture Content | < 0.5% (Dried Grade) |
| Grain Shape | Sub-angular to Rounded |
| Clay Content | < 0.2% |
Silica sand is an incredibly versatile mineral. Our products serve:
Larger grain sizes ideal for water filtration beds and specialized concrete aggregates.
Perfectly balanced AFS numbers tailored for the vast majority of metal foundry casting applications.
Very fine, washed sand used extensively in glassmaking and specialty chemical production.
Moisture-free sand processed through rotary driers, essential for resin-coated foundry applications.
The performance of silica sand hinges entirely on its cleanliness and sizing. We employ advanced multi-stage hydro-cyclone washing to remove microscopic clay particles (de-sliming) and attrition scrubbing to polish the grains.
Our NABL certified lab conducts rigorous daily sieving analyses to calculate precise AFS Grain Fineness Numbers, ensuring our clients receive a product that behaves predictably and perfectly in their manufacturing processes.
