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Quick Details

  • Classification: Chemical Auxiliary Agent, Hot melt adhesives
  • CAS No.: 7631-86-9
  • Other Names: Silica Sol
  • MF: mSiO2 nH2O
  • EINECS No.: FSKK0002
  • Purity: 20%-40%
  • Place of Origin: China (Mainland)
  • Type: Colloidal Silica
  • Usage: Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Paper Chemicals, Petroleum Additives, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Surfactants, Textile Auxiliary Agents, Water Treatment Chemicals, Construction
  • Brand Name: Finesilicon
  • Model Number: FSKK0002
  • Category: construction adhesives&sealants
  • adhesive ,liquid silica: odorless, tasteless and non-toxic
  • chemical molecular formula: mSiO2.nH2O.
  • colloid grains: 10-20nm
  • Main Raw Material: Silicone
  • Color: milky white
  • Adsorbent Variety: Activated Carbon
  • appearance: liquid

Packaging & Delivery

Packaging Details (package per bucket) 25kg/barrel ,250kg/barrel can be packed according to customers' specific requirements.
Delivery Time Customer order 10days,rush order 5days ,in stock 1 days.

Specifications

Appearance: milky white liquid
SiO2 content: 40%
particle size: 10-20nm
PH value: 9-10.5
Packing: 250kg/drum

 

Characteristics

 

1 colloidal Silica  belongs to adhesive ,liquid silica.

 

2 It is odorless, tasteless and non-toxic.

 

3 Its chemical molecular formula is mSiO2.nH2O.

 

4 Since the colloid grains are minute (10-20nm) and have relatively larger specific surface area, the grains 

themselves are colorless and transparent, so they do not affect the natural color of the materials to be covered.

 

5 With low viscosity, it can soak the places where water soaks, therefore, it shows excellent dispersion and permeability when  mixed with other substances.

 

6  When the moisture contained in colloidal silica is evaporated, the colloid grains firmly adhere to the material 

surface and the combination of silicon and oxygen is then formed between grains. It is a good adhesive. 

 

Usage

Used as the cohesive agent for various fireproof materials. It has high bonding strength and high heat-resisting performance (1500-1600°C), etc. 

 

Used in coating industry. It makes the paints firm. It also possesses features, such as anti-contamination, dustproof, anti-aging, fireproof, etc. 

 

Used in precision casting of thin covers to increase the cover strength, inprove the casting smooth finish. Its molding quality is better than that of water glass. It can be used to replace ethyl silicate for molding so as to reduce the costs and help improve the operating conditions. Having large specific surface area, silica sol can be use for making catalyst and as catalyst carrier. 

 

Used in paper-making industry. Can be used as the anti-glutinous agent of cellophane, pre-treatment agent of photographic paper, skidproof agent of cement bags, etc. 

 

Used as sizing agent in textile industry. When used with oil agent to process wool and rabbit hair, it helps improve 

the processing of wool and rabbit hair, reduce broken ends, eliminate flyings, thus improve the finished product rate and increase the economic returns. 

 

Used as the treatment agent of silicon steel plates, dispersing agent of kinescopes and skidproof agent of floor waxes, etc.

 

 

Technical Data

 

ITEM

Basic sodium type

Acidic non-stabilizer type

JN--20

JN--25

JN--30

JN--40

SW--20

SW--25

SW--30

SiO2, %

20.0-21.0

25.0-26.0

30.0-31.0

40.0-41.0

20.0-21.0

25.0-26.0

30.0-31.0

Na2O, % ≤

0.30

0.30

0.30

0.40

0.04

0.05

0.06

PH value

8.5-10.0

8.5-10.0

8.5-10.0

9.0-10.5

2.4-4.0

2.4-4.0

9.6

Viscosity (25),mp a.s ≤

5.0

6.0

7.0

25.0

5.0

6.0

7.0

Density (25),g/cm3

1.12-1.14

1.15-1.17

1.19-1.21

1.28-1.30

1.12-1.14

1.15-1.17

1.19-1.21

Average particle diameter,nm

10-20

10-20

10-20

10-20

10-20

10-20

10-20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Term of validity

 

One year for the alkali based, half a year for the acid based.

 

 

Packaging

 

25kg or 250kg per plastic drum.

 

 

Conditions for storage and transportation

 

Maintain 0-40°C during storage and transportation to avoid freezing of exposing to the sun. 

 

 

Special Note

 

Technical information and data above is based on the best information on effective, and does not provide any 

guarantee and no suspected infringement of any patent. User prior to use, has the responsibility for testing the 

suitability of the product.

 

 

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