1. Variety:raw and expanded
2. Color:golden and silver
3. Size:0.3-1mm 1-2mm 2-4mm 20-40mesh 40-60mesh 60-80mesh and any size can customize
4. Expansion ratio:8 min
5. Asbestos:none
6. Impurity content:10% max
7. Physical and chemical index:
Density : 220-280kg/m3
Porosity: 1100-1200kg/m3
Hardness: 1-1.5
Melting point:1320-1370C
Compressive ressitance:100-150Mpa
Index of refraction: Ng=1.545-1.581
Moisture conten: 7% max
Moisture absorbency: 2%
Anticongelation: good
Antibioticity: good
Corrosion resistance: Alkali-resitant.
25kg per woven bag or 1ton per woven bag
Any others aslo can customize as your need.