Glass Granules

Available grain sizes
(Average grain size)

80-150µm
100-200µm
200-300µm
300-600µm
300-800µm
400-1400µm
 

Physical properties

 

Hardness	6-7 mohs
Grain shape	angular
Melting point	approx. 730 °C
Specific gravity	approx. 2,5 g/cm³
Bulk density	approx. 1,2 – 1,8 g/cm³ (depending on grain size)

Typical chemical analysis

 

SiO2	68,00-75,00%
Na2O	12,00-18,00%
CaO	7,00 – 12,00%
MgO	max. 5,00%
Al2O3	max. 2,50%
K2O	max. 1,50%
Fe2O3	max. 0,50%

Blasting systems

– Pressure blast systems
– Injection blast cabinets

Applications

Blast-cleaning:
– Cleaning metallic surfaces with removal of material (abrasive effect)
– Removing rust and scale from metallic surfaces
– Removing tempering colour

Surface finishing:
– Creating a matt finish on surfaces
– Producing specific visual effects

Other:
– Roughening metallic surfaces
– Creating a matt finish on glass
– Deburring
– Processing very hard components