Silica sol is a colloidal solution,odorless and non-toxic, precision investment silica sol 1Used as the cohesive agent for va Packaging & Delivery

Packaging Detail:	Colloidal silica is packed in 25kg or 250kg plastic drums
Delivery Detail:	delivery between 7days receive T/T or L/C payment

Specifications

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There are nine kinds of colloidal silica in our company; 33 varieties altogether, which are shown below:

 

Kinds	Varieties
Na-stabilizer	JN-10	JN -15	JN -20	JN -25	JN -30
NH3-stabilizer	NS-10	NS-15	NS-20	NS-25	NS-30
Acidic	SW-20	SW-25	SW-30
Neutral	ZS-20	ZS-25	ZS-30

There are 3 types of Acidic colloidal silicaincluding SW-20, SW-25 and S-30.Their standards are:

  

Designation	Standard
	SW-20	SW-25	SW-30
Appearance	Slight milky transparent to translucent liquid
SiO2 (wt%)	20±1%	25±1%	30±1%
Na2O (wt%)	≤0.1%
PH (20°C)	≤4.0
Density (20°C,g/cm3)	1.12-1.14	1.15-1.17	1.19-1.21
Viscosity(20°C,mPaS)	≤7
Particle size(nm)	8-20
Stability	3 months

 

Packing & Storage

Colloidal silica is packed in 25kg,250kg or 1000kg plastic drums.

 

Store the colloidal silica at a temperature between 0 and 50, avoid exposure to the air, and insulate it from the sun.

Wash the empty drums as quickly as possible to avoid SiO2 crystalline deposits.

If you want to remove the deposition from empty drums, use a 10-percent NaOH solution at 50~60.

silica sol