VANABIO® OS2542D
VANABIO® OS2542D

Ethylpolysilicate 40

VANABIO® OS2542D is a hydrolyzed and oligomerized form of ethyl silicate. It is a mixture of monomers, dimers, trimers and cyclic polysiloxanes. 


VANABIO® OS2542D is a transparent liquid containing 40% silica (SiO2) by mass, but in practice, in addition to chain condensates, it also contains branch-shaped and ring-shaped condensates. It is the equivalent of Momentive's TEOS-40, Wacker's SILICATE TES40, Evonik's Dynasil 40 silane.

VANABIO® OS2542D
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Technical Data


CAS No.

11099-06-2 or 68412-37-3

EINECS No.

234-324-0

Formula

(OSi(OC2H5)3)5

Molecular Weight

App.750

Boiling Point

160°C [760mmHg]

Flash Point

Min.62°C



Color and Appearance

Colorless transparent liquid.

Density 25/25°C

1.05-1.07

Refractive Index

1.397

Viscosity (20°C)

5 cps

SiO2 content

40.0-42.0%

Ethyl Polysilicate

Min.99.0%

Tetraethoxysilane

Max.1.0%

Ethanol

Max.0.5%


Application


  • VANABIO® OS2542D is used to deposit silicic acid formed as a result of complete hydrolysis. The resulting silicic acid bonds well to many inorganic substrates, such as ceramic, fillers, glass, metal, pigments and synthetic fibers. The deposition of a thin SiO2 layer improves the chemical and the thermal stability and mechanical properties.


  • VANABIO® OS2542D orthosilicate may be used as a binder in zinc-rich (corrosion resistant) coating.


  • VANABIO® OS2542D may be used as a starting material for sol-gel process.


  • VANABIO® OS2542D may be used as a crosslinker component for silicone adhesive in cold curing silicone rubber systems.


  • VANABIO® OS2542D may be used as a hardening component in dentistry for impression materials and as binder for embedding material.


  • VANABIO® OS2542D may be used as a binder in precision foundry industry.


Packing and Storage


  • VANABIO® OS2542D is supplied in 200Kg steel drum or 1000Kg IBC container.


  • In the unopened original container VANABIO® OS2542D has a shelf life of one year in a dry and cool place.


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