Filling media Glass beads are made of broken glass, flat glass, and other raw materials by high temperature melting bead processing. Low thermal conductivity, high strength, good chemical stability, and the texture of glass beads themselves, glass beads instead of plastic raw materials are widely used in the filling, such as gravity blanket filling, compression filling, medical filling, weighted blanket filling, toy filling and so on.
TYPICAL CHEMICAL ANALISIS [%]:
| SiO2 | Na2O | Fe2O3 | Al2O3 | MgO | CaO | Other |
| ≥65.0% | ≤14.0% | ≥0.15% | 0.5-2.0% | ≥2.5% | ≤8.0% | 2.0% |
PHYSICAL PROPERTIES:
| Bulk Density | Real Density | Mohs Hardness | HRC hardness | Roundness | Magnetic |
| 1.5g/cm3 | 2.5g/cm3 | 6-7 | 46 | ≥80.0% | ≤0.1% |
AVAILABLE SIZES
| Sandblasting | 20# 30# 40# 50# 60# 70# 80# 90# 100# 120# 140# 150# 170# 180# 200# 220# 240# 325# |
| Grinding | 0.8-1mm 1-1.5mm 1.5-2mm 2-2.5mm 2.5-3mm 3.5-4mm 4-4.5mm 4-5mm 5-6mm 6-7mm |
| Road Marking | BS6088A BS6088B EN1424 EN1423 AASHTO TYPE1 AASHTO TYPEII JIS NO.1 JIS NO.2 |
Why choose glass beads as a filling medium for gravity blankets?
- Low thermal conductivity
- High strength
- Good chemical stability
- The raw material is glass, Non-toxic and odorless
