Quartz (silica, SiO2) is the core mineral within the Sibelco group and can be found in a broad number of applications, such as glass, ceramics and coatings. Quartz can be characterised by:
- Relatively high Mohs hardness of 7
- Low electrical conductivity
- Easy to wet
- High inertness in various media
- Shape (depending on the source, quartz particles can have an angular or more rounded shape).
Note when using quartz:
depending on the particle size distribution of the product, it can be labelled (STOT RE 2 or STOT RE 1). For more detailed information, visit www.safesilica.eu.
|Colour (D65/ 10°) L*||93 – 96||[-]|
|[µm]||[µm]||[µm]||[g/ 100 g]|
Production locations Silverbond, Silica Sand
Quartz will provide:
- Dirt pick-up resistance: the presence of quartz improve the coating’s resistance to dirt (from the atmosphere, for example).
- Ease of tinting: due to the combination of refractive index, brightness and color, paints including fine quartz flour will give excellent reproducible colour results when working with tinting systems;.
- Texture effect: usage of coarse quartz grades will ensure texture to the surface of the coating.
- Tint retention: paints including fine quartz flour show improved tint retention over other minerals when subjected to natural weathering.
- UV resistance and weatherability: due to its inertness, quartz supports good UV and weatherability performance to exterior architectural coatings.
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