Precipitated Silica,silicon dioxide,SiO2) applied to rubber industrial reinforcing filler for rubber with high strenth

Silica powder (Precipitated Silica,silicon dioxide,SiO2)

 It is reinforcing filler for rubber soles with high reinforcing effect as that of carbon black, and it can make rubber products with light color or transmissivity  

SiO2 (%)	≥ 92
Loss on heating (%)	4.0-8.0
Loss on ignition (%)	≤ 7.0
PH value	6.0-7.0
Specific surface area  BET(cm2/g)	170 -190
DBP absorption value (cm3/g)	2.0-3.0
Total iron content ( mg/Kg)	≤ 300
Sulfate (%)	≤1.5

Silica powder for rubber

Silica Precipitated granular grade