High-Purity Silica Sand
PW 40™
Description
PW 40™ is an ultra-low-iron silica sand made from crushed quartz gravel. It is produced at our facility, conveniently located near I-95 between Philadelphia and Baltimore.
Downloads
Distribution
- Bulk shipment by dump truck or pneumatic truck/trailer. (Railcar shipments available soon.)
- Customer pick-up or next-day arranged delivery.
Features/Benefits
PW 40™ is crushed, milled and screened to maintain a top side of 40 US Mesh. Liberated magnetic and paramagnetic minerals are removed with rare-earth roll magnets to maintain a consistent iron content below 80 ppm. The precise control of particle size distribution and chemistry improves production processes, allowing better control of production costs and compliance with customers’ chemistry demands.
Because of its reliable chemical composition and consistent gradation quality, PW 40™ is an excellent choice for a variety of applications requiring high-purity silica.
Typical Gradation
| ASTM Sieve No. | % Retained |
| 40 | 1.5 |
| 50 | 15.5 |
| 60 | 15.4 |
| 70 | 14.5 |
| 100 | 33.5 |
| 140 | 15.6 |
| 200 | 2.9 |
| 270 | 0.2 |
| PAN | 0.0 |
Typical Oxide Concentration
| Oxide | % By Weight |
| Fe2O3 | 0.0072 |
| Al2O3 | 0.0075 |
| TiO2 | < 0.0010 LLD |
| K2O | < 0.0015 LLD |
| Cr2O3 | < 0.0005 LLD |
| CaO | < 0.0055 LLD |
| MgO | < 0.0025 LLD |
| SiO2 | > 99.97 |
Warranty
The information and statements provided here are believed to be reliable but should not be interpreted as a warranty or guarantee for which we assume legal responsibility.