Industrial Coatings / Roof Coatings / Quartz

Quartz

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.

 

Basic properties

Property Value Unit
Moisture [%]
pH 7 [-]
Hardness (Mohs) 7 [-]
Refractive index 1.55 [-]
Colour (D65/ 10°) L* 93 – 96 [-]
L.O.I. < 0.3 [%]
Density 2.65 [kg/ dm3]

 

Product overview

Coarse Fine
product Grade D50 Name Grade D50 D90 OA
[µm] [µm] [µm] [g/ 100 g]
Silica sand M31 370 Silverbond M6 30 95 16.5
M32 260 M10 23 60 17.5
M34 170 M300 17 40 19
M400 12 26 20
M500 4 10 23
M600 4 9 24
M800 1.8 4.1 32

Production locations Silverbond, Silica Sand

 

Application

Quartz will provide:

 

  • UV resistance: being insensitive to UV radiation, quartz will reduce the coating’s degradation.
  • IR reflection: quartz contributes to IR reflection of roof coatings.

 

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