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NexSil™ 20K-30

1 of 22 products in this brand
NexSil™ 20K-30 is a potassium-stabilized alkaline dispersion of 20nm colloidal silica at 30% SiO2 concentration in water. The particles are negatively charged and have a high specific surface area. NexSil™ 20K-30 can be used in a wide variety of applications such as precision investment casting, precision polishing, metal surface treatment, textile treatment, catalyst binder, or other applications where a small particle-size colloidal silica is required.

Chemical Family: Silica

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Applications & Uses

Compatible Substrates & Surfaces

Properties

Physical Form
Appearance
Clear to Translucent Sol
Typical Properties
ValueUnitsTest Method / Conditions
SiO2 Content29 - 31%
K2O Content0.05 – 0.30%
Particle Size16 - 24nm
Specific Surface Area114 – 170m2/g
Viscosity3 - 20cP
pH8.4 – 9.6
Surface ChargeNegative