Thermal Conductivity
(W/{M· K})

Fire-Proof
(degree celsius)

Temperature in Use
(degree celsius)

Water Absorption
(%)

Anti-freezing
 

Sound Absorption
 

Corrosion Resisting
 

0.047-0.081

1300-1350

900-1000

26.5-40.6

The parcicle size has no change, when it is freezed 15 timesunder -20 degree celsius.

0.53-0.63

Alkali-resisting

Chemical Analysis

Element

SiO2 

MgO

Al2O3

Fe2O3

CaO 

K2O

TiO2

Ph

Content%

43.75

8.98

15.55

  15.80

  1.32   

5.19

1.67

8-11