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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.
|Colour (D65/ 10°) L*||93||[-]|
[g/ 100 g]
Production location Portafill G
Portafill G is the brand name for Sibelco’s milled E-glass product.
- Burnish resistance: due to its hardness of 6 on Mohs scale, milled E-glass provides good burnish resistance (low tendency to become glossy when rubbed).
- Ease of tinting: due to the combination of refractive index, brightness and colour, paints including fine milled E-glass particles provide excellent reproducible colour results when working with tinting systems.
- Gloss control: the gloss level of an interior coating can be regulated by selecting the appropriate grade of milled E-glass.
- Scrub resistance: due to its hardness of 6 on Mohs scale, milled E-glass improves the wet-scrub resistance of interior decorative paints.
- Stain resistance: milled E-glass acts as a supporting mineral filler in stain resistant coatings.
- Abrasion resistance: due to its hardness of 6 on Mohs scale, milled E-glass will increase the coating’s resistance to wear.
- Clarity: due to its fairly low refractive index, milled E-glass becomes transparent when combined with certain binder systems.