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While CAB-O-SIL® silicas and SpectrAl aluminas are primarily used as rheology modifiers, reinforcing fillers, and free-flow additives in silicones, adhesives, sealants, coatings and toners, there are many other applications that make use of  the unique properties and functionality of these particles.

Properties of:

Silica Alumina
Negative surface charge Positive surface charge
Thermally insulative Thermally conductive
Electrically resistive Electrically resistive
Amorphous Mixture of delta, theta, gamma and amorphous
Refractive Index ~1.46 Refractive Index ~1.76


Explore the applications and properties of our CAB-O-SIL fumed silica, SpectrAl fumed alumina, and CAB-O-SPERSE® dispersions and consider how Cabot's particles can provide the performance needed in your application.