E-glass
Milled E-glass (glass (amorphous silica) consisting of SiO2, Al2O3, CaO, MgO, B2O3, F2, Na2O, K2O, Fe2O3) is produced from an industrial E-glass side stream. Milled E-glass can be characterised by:
- ‘Green’ attributes, as a product of an industrial side stream.
- Relatively high Mohs hardness of 6.
Advantage over quartz and cristobalite and certain feldspar grades: free of labelling, milled E-glass grades can be used as an alternative when labelled grades of other mineral fillers are no longer permitted or wanted.
Basic properties
| Property | Value | Unit |
| Moisture | 0.2 | [%] |
| pH | 9 | [-] |
| Hardness (Mohs) | 6 | [-] |
| Refractive index | 1.57 | [-] |
| Colour (D65/ 10°) L* | 93 | [-] |
| L.O.I. | 0.5 | [%] |
| Density | 2.6 | [kg/ dm3] |
Product overview
| Grade | D50
[µm] |
D97
[µm] |
OA
[g/ 100 g] |
| G25 | 12 | 41 | 22 |
| G75 | 31 | 130 | 15 |
Production location Portafill G
Application
Milled E-glass will provide:
- Abrasion resistance: due to its hardness of 6 on Mohs scale, milled E-glass will increase the coating’s resistance to wear of a coating.
- Clarity: due to its fairly low refractive index, milled E-glass becomes transparent when combined with certain binder systems.
Optical
Mechanical reinforcement
