Item

Test result 

Al₂O₃，%  

21-25

SiO2，%

63-67

Fe₂O₃，%   

1.1

Bulk Density  g/cm3   

2.2

Acid resistance %

99.88

Water Absorption %

0.10

Bending strength (MPa)   

59.7

Thermal stability

20℃-120℃ no cracks, peeling breakage