Fused Silica Lump

Size:1-100MM

SiO2:99.99%-99.90%

Fe2O3:6ppM max

Li2O:1.0ppM max

Al2O3:30ppM-100ppM

K2O:9ppM max

Na2O:11ppM max

EC:1.8-2.2

PH:5.8

SPECIAI FEATURES:

Near zero thermal expansion coefficient

Excellent thermal shock resistance

Pure( high SiO2 content , low Iron , Potassium & Sodium Oxide )

Consistent Chemistry

Statistically controlled particle size distribution

Main Applications:

EMC(Epoxy Molding Compound)

Investment Casting , shell mould product

Refractory & Ceramic materials

Paint

Others