Name of Silica

Mean Particle Size (Coulter Counter), (µm)^a

Specific Surface Area

(m²/g)^a

Tapped Density

(g/l)^a

Zeta Potential (mV)^b

Aerosil^®200

12.0

200

50

−26.4

Aerosil^®380

7.0

380

50

−23.7

Carplex^®67

7.5

380

140

−30.4

Carplex^®80

8.0

200

145

−31.2

Carplex^®FPS500

2.5

500

155

−28.5