Our glass beads are made of class A calcic soda glass. Produced by fine crushing of the glass then turned into spherical shape in a furnace followed by fine screening and packing.
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Sectors:
Typical chemical analysis:
SiO2 72,5 %
Na2O 13,7 %
Al2O3 0,4 %
CaO 9,8 %
FeO-Fe2O3 0,2 %
MgO 3,3 %
K2O 0,1 %
Specific Density 2,45 – 2,55 Bulk Density: approx 1,5
Hardness: 47 HRC (or 6 Mohs) Spherical shape (round)
Spherical shape (round)