Description
Discover the exceptional qualities of Glass Microspheres for Sand Blasting and Stripping, offering high-quality finishing and a tough, viscous consistency of over 6.0 Mohs. This abrasive is free from free silica and lead, crafted from sodium-tempered solidified glass, predominantly in spherical form and occasionally in angular form.
Compared to other abrasives, glass microspheres provide a shinier surface and are generally more pleasing to the eye. With smaller grit sizes, the surface is shinier, applicable to both aluminum and metals in general. The choice of grit size also depends on the desired surface roughness. There's often a reluctance to choose smaller grits as they may reduce the lifespan and abrasive power of the beads. Typically, SV100-200 is the preferred choice for aluminum.
Glass beads are ideal for cleaning and finishing various items, including holds, dies, gearwheels, mechanical parts, and for oxide removal, deburring, and cosmetic finishing on materials like stainless steel, brass, copper, aluminum, titanium, plastics, ceramics, glass, and textiles. Their usage aims to enhance the final appearance of metal surfaces and clean sensitive surfaces without chemical interaction, ensuring no contamination on the blasted material. Their effective action allows for multiple uses, typically between 6-10 times.
Features/Characteristics
CHEMICAL ANALYSIS:
- Hardness: 6 ÷ 7 Mohs
- Specific weight: 2,45 ÷ 2,50 Kg/dm³
- Relative specific weight: 1,4 ÷ 1,7 Kg/dm³
- Foreign bodies: ≤ 0,05%
- Chemical analysis:
- SiO₂ bound: 70 ÷ 73%
- Na₂O: 13 ÷ 15%
- CaO: 7 ÷ 11%
- MgO: 3 ÷ 5%
- Al₂O₃: 0,5 ÷ 2,0%
- K₂O: 0,2 ÷ 0,6%
- SO₃: 0,2 ÷ 0,3%
- Fe₂O₃: 0,08 ÷ 0,11%
- PbO: absent
- Shape: spheroidal (≤ 2% angular grains)
GRANULOMETRY AND MEASURES
Grain sizes range from microns to millimeters, ensuring a high percentage of uniformity within specified ranges.
- 425 - 850: 90% min. between 0,425 – 0,850 mm.
- 300 - 400: 90% min. between 0,300 – 0,400 mm.
- 200 - 300: 90% min. between 0,200 – 0,300 mm.
- 150 - 250: 90% min. between 0,150 – 0,250 mm.
- 100 - 200: 90% min. between 0,100 – 0,200 mm.
- 90 - 150: 90% min. between 0,090 – 0,150 mm.
- 70 - 110: 90% min. between 0,070 – 0,110 mm.
- 40 - 70: 90% min. between 0,040 – 0,070 mm.
- Other sizes and types available on request.
LEGAL NOTICE
Complies with EN ISO 11126 N/CU/G, ensuring an ecological and safe working environment that meets health and safety standards. Composed of molten sodium glass.