This talc is an ultra-fine ground talc designed to balance the impact strength and stiffness required in automotive TPO’s, high performance polyolefins, and PVC. This talc has ore selected specifically for its utility in polymers. The ore is processed so that the powder produced has less than 0.9 micron median particle size.
| CHEMICAL ANALYSIS | |
|---|---|
| SiO2 | 60% |
| MgO | 32% |
| Fe2O3 | 1.1% |
| Al2O3 | 1.0% |
| CaO | 0.2% |
| Loss on Ignition | 5.5% |
| Moisture (% weight loss @ 110⁰C) | 0.2% |
| PHYSICAL ANALYSIS | |
|---|---|
| Dry Whiteness (Hunter) | 89 |
| Hegman Fineness | 7 |
| pH Value | 8.8 |
| Specific Gravity | 2.8 |
| Bulk Density | 6 lb/ft3 |
| Tapped Density | 20 lb/ft3 |
| Average (median) particle size | <0.9 microns |