Fused silica is manufactured from high purity natural silica stone, melted at extremely temperature .then cooling ,crashing , grinding into lump as usage.  With high purity, high chemical and electricity resistance, lowest thermal expansion  and exceptionally good thermal shock resistance and lower thermoconductivity. Our fused silica is mainly used in the fields of epoxy molding compound, casting, refractory, precision ceramics ,crucible and casting, shell mould, silicon rubber, electrical insulator and marble industries etc.

Fused Silica Lump:

  Standard:1-100mm

Chemical Composition:SiO2: 99.92%-99.9%;  Fe2O3: 15ppm max; Li2O: 1.0ppm max;

Al2O3:25ppm max;  K2O:20ppm max;  Na2O: 11 ppm max;

  Fused Quartz Sand:

   specification:0.1-15mm

Chemical Composition:

SiO2: 99.92%-99.90%; Fe2O3: 20ppm max

Li2O: 1.0 ppm; Al2O3: 30 ppm; K2O:20ppm max;

Na2O: 20ppm max;

 Fused Silica Powder:

Grain Size:

-4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh,-50+100mesh, -120F,

　　　　-200F, -325F, -400F, -600F.-800F,-1000F, 1250mesh etc.

We may supply as buyer’s request .