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GSM Series (Soda Lime-Molded)

High Quality solid Glass spheres.
Made from superior quality raw material (Soda Lime). Produced using state of the art Molding technology.

This process enables a targeted and exact forming of glass beads, especially with diameters > 4.0mm. This type of production is quite labor intensive, but allows for production of beads with excellent roundness in a size range up to 25mm.

Technical Properties
Specific Weight:2.50 g/cc
Bulk Weight:3.30 lbs/l; 12.50 lbs/g; 1.50 kg/l
Hardness:Mohs >6.0; Rockwell 47RC; Knoop 100 gram loading 515kg/mm
Refractive Index:1.52
Elasticity Module:63 gpa
Sphericity:>95%

Chemical Composition
SiO266%Na2O16%CaO7.0%
MgO2.0%Al2O35.0%K2O0.01%
ZnO1.0%B2O33.0%PbO Free<0.01%

Available Grade Sizes
Product #Diameter 0mmArt#Diameter 0mm
GSM-151.5mm (+/-0.2)GSM-707.0mm (+/-0.3)
GSM-202.0mm (+/-0.2)GSM-808.0mm (+/-0.4)
GSM-252.5mm (+/-0.2)GSM-909.0mm (+/-0.4)
GSM-303.0mm (+/-0.2)GSM-10010.0mm (+/-0.5)
GSM-353.5mm (+/-0.3)GSM-12012.0mm (+/-0.5)
GSM-404.0mm (+/-0.3)GSM-14014.0mm (+/-0.5)
GSM-505.0mm (+/-0.3)GSM-16016.0mm (+/-0.5)
GSM-606.0mm (+/-0.3)

More sizes up to ø 25mm upon request

* Data are reference values and are subject to slight deviations.
GSM Glass