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Ethylsilicate 48

Name
Ethylsilicate 48
Product description

Ethyl silicate-48 is an ethoxysiloxane oligomer with about 10 of average Si-O-Si chain length. Ethylsilicate-48 is a mixture of tetraethoxysilane and polyethoxysiloxanes with a high content of silicon dioxide (SiO2) in the range of 47-48,5%. It is well soluble in toluene, benzene, ethyl alcohol and other solvents.

Ethylsilicate-48 is obtained from the reaction of silicon tetrachloride and ethyl alcohol.

Synonyms: Ethylsilicate 48, TEOS, ethyl silicate, Tetraethyl orthosilicate, tetraethyl silicate, Orthosilicic acid tetraethyl ester, Tetraethoxysilane, silicic acid (H4SiO4), tetraethyl ester, tetraethyl silicate

CAS. No: 78-10-4   EINECS 201-083-8  EC 201-083-8

Our products

An additive for the antifouling paints production, a polymer modifier and crosslinking agent, a binder for casting molds, a concrete water-repellent impregnation agent, a dehydrating agent.
Fields of application

Manufacture of paint and varnish coatings:

  • Additive for the production of anti-fouling paints / coatings / systems, that protect the underwater surfaces or parts of vessels, hydro-technical installations, drilling rigs from fouling with marine or river organisms and plants.
  • Functional additive for varnishes and paints with good adhesion to glass.
  • Component for the nonstick paints preparation.
  • Binding component for the production of heat-resistant, chemical resistant and weather-resistant coatings.
  • A modifying additive in enamels (additive in paints), it forms fast-drying, heat-resistant and waterproof films with a low degree of shrinkage and stable gloss.

Polymer additive:

  • A crosslinking agent for silicone rubbers.

Chemical industry:

  • Ethylsilicate-48 is a source of the finest amorphous silica (pure reactive silica) and TEOS of high purity.
  • Reagent for organic synthesis.
  • Dehydrating agent.

Metallurgy / Engineering:

  • Ethyl silicate-48 is used as a source material for obtaining a binder in the foundry industry for the ceramic casting molds manufacturing (investment casting technology, casting in ceramic molds).
  • A binder for the manufacture of rods exposed to high temperatures.
  • Super hard alloys parts, that are difficult to stamp, roll and forge, are made using Ethyl silicate additive.

Building sector:

  • Ingredient for the hydrophobic agents manufacturing, weather-resistant hydrophobic building materials production.
  • Antiseptic wood impregnation.
  • Protective and preservation treatment of painted surfaces.
  • Modifying additive for plaster, putty and whitewash solutions.
  • Modifier of epoxy and bituminous materials.
  • Used to increase water resistance, frost resistance, corrosion resistance of gypsum, concrete, silicate paints.
  • Increases the rigidity and strength of wall panels, brick, plaster and stone architectural details.
  • Impregnation of concrete to reduce the porosity.
  • Protects aluminum building structures against corrosion.
  • Prevents the appearance of dark and rusty stains, peeling, efflorescence on surfaces.
  • Acid-resistant cement manufacturing.

Ceramic products manufacturing:

  • Binder in the manufacturing of ceramic masses that are resistant to highly corrosive environments and have mechanical strength, heat resistance and high dielectric properties.
  • Additive in grinding of silicate materials in the production of porcelain, faience, earthenware and majolica mass.
  • Increases strength, water resistance and heat resistance of ceramic masses.
  • Increases a grade of finished products.

Textile industry:

  • Ethyl silicate-48 as an additive-modifier provides strength increasing of cotton yarn, non-shrinking finishing and imparts dirt-repellent properties to wool fabrics.
  • Reduces shrinkage of rugs and make them resistant to dust and decay.
  • Dehydrated leather tanning compositions component.
  • As the impregnation of filter fabrics.
  • Component of protective impregnation for work wear.

Glass manufacturing:

  • Modifying additive Ethylsilicate-48 imparts the glass hydrophobic effects, mechanical and chemical resistance, light scattering.
  • Improves the appearance, protects the glass surface from corrosion.
  • Ingredient for glass, mirrors, crystal cleaning agents.
  • The treated surface acquires a steady shine, dirt is easily removed from it, visibility is improved.

Oil and gas production - for waterproofing works on oil and gas wells.

In medicine - as a binder in the manufacture of dental prostheses.

In the optical industry for the production of optical fiber materials, the enlightenment of optical glasses.

Jewelery: Component of self-curing compositions when casts of.

Benefits
  • The addition of Ethylsilicate-48 to any of suitable systems increases moisture resistance, wear resistance, petrol resistance, salt resistance, resistance to UV radiation, weather resistance.
  • Protects against the development of mold and mildew, microorganisms, algae and shellfishes.
  • Protects against corrosion.
  • Easily hydrolyzed by air moisture.
  • Dries quickly and speeds up the drying time of treated materials.
  • Creates a durable silicone film.
  • Soluble in organic solvents.
  • Possesses the good binding and fastening properties.
  • Anti-fouling paints and varnishes with the addition of Ethyl silicate-48 allows to operate vessels and constructions effectively in areas with temperate and tropical climates.
  • Ethyl silicate-48 withstands contact with molten metal.
  • Parts obtained in forms coated with a film of ethyl silicate, do not require subsequent mechanical treatment.
  • Increases the water resistance of paint or lacqer film.
  • Improves the quality and durability of epoxy and bitumen materials.
Storage

Store in original tightly closed container at temperature from -40°C up to +30°C. Store in a cool, dry, well-ventilated place. Protect from moisture and direct sunlight. Store away from heaters, oxidizers, strong acids, alkalis and other chemicals having alkaline reaction for example, ammonia, amines).

The guaranteed shelf life in original container is 12 months.

Storage over the date specified on the label does not necessarily mean the product is unusable. In case if store more please check the properties of product before use.

Packaging

Metal drums with a capacity of 20 kg.
Metal drums with a capacity of 200 kg.

Safety information

Ethyl silicate-48 is a low toxic, explosive, fire hazardous product. When carrying out work observe fire safety techniques.

Detailed instructions are given in the relevant product safety data sheet. It can be provided upon request.

Parameter name and measure unit Standard
Appearance Colorless clear liquid with a specific odor
Color by Gardner scale, max 1
Chemical formula SinOn*1(OC2H5)2n+2 (n≒10, in average)
Molecular weight (according to exclusion chromatography data) 1,400
Mass fraction of silicon dioxide,% 47,0 – 48,5
Mass fraction of tetraethoxysilane,% 0,1 – 0,3
Mass fraction of ethyl alcohol,%, max. 6,0
Density, at +25℃, g/cm3 1,135 – 1,150
Viscosity, at +25℃, MPa*s 18,00 – 24,00
Acidity, %, max 0,002
Flash point (closed cup), ℃ 30,7
Refractive index at +20°C 1,406
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