China Traffic Safety Road Marking Paint Glass Bead with Good Price Coated Road Marking Glass Beads South Africa Glass Beads for Road Marking Manufacturers., Find details about China Glass Microsphere, Reflective Glass Beads from Traffic Safety Road Marking Paint Glass Bead with Good Price Coated Road Marking Glass Beads South Africa Glass Beads for Road Marking Manufacturers.
Project | Quality | |
Chemical composition% | SiO2 | >72% |
CaO | >8% | |
Na2O | <14% | |
MgO | >2.5% | |
Al2O3 | 0.5-2.0% | |
Fe2O3 | 0.15% | |
Others | 2.0% | |
Refractive Index | Nd≥1.5% | |
Density | 2.4-2.6g/cm3 | |
Size distribution | Oversize ≤5% under size ≤10% | |
Wire diameter | 0.03-0.4mm | |
Durability | 3-5 % | |
Hardness | 6-7 MOHS ;46HRC | |
Microhardness | ≥650kg/cm3 | |
Circularity | Round rate of ≥95% | |
Appearance | colorless ,glass transparent without impurities,Round and smooth | |
Application | 1.Grinding 2.Road marking paint 3.Sand blasting | |
Lead Content | No lead content, reach American 16CFR 1303 Lead content standard | |
Harmful substances content | Lower than American 16CFR 1500 standard | |
Flammable fire test | Not easy combustion,reach American 16CFR 1500.44 standard | |
Soluble heavy metal content | Metal content of soluble matter ratio solid weight rate no more than ASTM F963 corresponding value | |
Package | 25KG/pp bag then 40 bags in one ton bag/pallet |
Type | Mesh | Micronsm Max(μm) | Microns Min(μm) |
30# | 20-40 | 850 | 425 |
40# | 30-40 | 600 | 425 |
60# | 40-60 | 425 | 300 |
80# | 60-100 | 300 | 150 |
100# | 70-140 | 212 | 106 |
120# | 100-140 | 150 | 106 |
150# | 100-200 | 150 | 75 |
180# | 140-200 | 106 | 75 |
220# | 140-270 | 106 | 53 |
280# | 200-325 | 75 | 45 |
320# | >325 | 45 | 25 |