Glass beads
Glass beads are a spherical, iron-free blasting medium which is suitable for use with stainless steel and aluminium. The round shape of the product makes it ideal for non-aggressive cleaning and for producing visually attractive surfaces. Micro glass beads are one of the most common reusable blasting media and are used all over the world.
Available grain sizes
(Average grain size)
0-50µm
40-70µm
70-110µm
90-150µm
100-200µm
150-250µm
200-300µm
300-400µm
425-850µm
Physical properties
Hardness: 6 – 7 mohs
Grain shape: spherical
Melting point: approx. 730°C
Specific gravity: approx. 2.5 g/cm3
Bulk density: approx. 1.5 – 1.6 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:
– Removing rust and scale from metallic surfaces
– Removing mould residues from castings
– Removing tempering colour
Surface finishing:
– Finishing surfaces to achieve specific visual effects
Shot peening:
– Compression of the surface
(strengthening the surface and improving its mechanical properties)
Shot peen forming:
– Shot peening to form or straighten workpieces
Packaging
25 kg sacks on pallets of up to 1 tonne
Minimum order quantity
50 kg (2 sacks)
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