Nyacol NexSil 20-AT colloidal silica

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Nyacol NexSil 20-AT colloidal silica

Neutral dispersion of 20 nm colloidal silica (30%) in water.  This product can be used in investment casting, polishing, metal surface treatment and catalyst binder applications.  The silica has been surface treated for improve stability at low and mid range pH.

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Translucent liquid

SiO2, %    29-31

Na2O,%    <0.3

Particle size, nm    15-20

Specific surface area, m2/g      120-180

pH     6-8

Surface charge     negative

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