Chemical components:
Chemical composition SiO2 Al2O3 K2O Fe2O3 CaO Na2O MgO H2O
Contents(%) 47.32 33.25 11.82 1.81 0.03 0.96 0.91 2.7.
Physical properties:
Density (g/m3) Refractive index Whiteness (%) Moisture (%) Radius-thickness ratio Heat Resistance (¡ã C) L.O.I. (%)
2.80 1.60 70-80 <1% >60 1300 2.82-2.9.
Vermiculite is a natural mineral that expands with the application of heat. The expansion process is called exfoliation and it is routinely accomplished in purpose-designed commercial furnaces. Vermiculite is formed by weathering or hydrothermal alteration of biotite or phlogopite.
14.5-15.5kg/pe or pp bag, 350bags/20fcl, 720bags/40hq
3-1mm/1-2mm/2-4mm or other sizes customers required.
