CFS-104, Tetraethyl orthosilicate is the ethyl ester of orthosilicic acid. It is widely used as the equivalent of Dynasylan SILBOND Pure, Momentive Silquest TEOS, and ShinEtsu KBE-04.
Chemical Name: | Tetraethyl orthosilicate |
Cas No. | 78-10-4 |
Model: | CFS-104 |
Formula: | C8H20O4Si |
Color: | Colorless |
Appearance: | Clear liquid |
Purity: | min 99% |
Synonyms: | ethyl orthosilicate; Ethyl Polysilicate 28 |


CFS-104 is an important material for sol-gel processing. It can be used as a crosslinker and a binder in adhesives, coatings and silicone rubbers, especially suitable for zinc-rich paints.
CFS-104 can be used for the surface treatment of metals, glass, fibers, inorganic fillers and pigments. It can improve mechanical properties and chemical properties of the composites.
CFS-104 can be used for optical glass processing and improve the light transmittance.
CFS-104 can be used as an insulation material in electronic industry and a silica source for semiconductors and zeolites synthesis.
Commercial products of Co-Formula include Isocyanate Silanes, Amino Silanes, Epoxy Silanes, Mercapto Silanes, Phenyl Silanes, Vinyl Silanes, Chloro Silanes, Alkyl Silanes, Long-chain Silanes, Silane Crosslinkers, Dimethyl Silicone Fluids, Methyl Hydrogen Silicone Fluids and Dual-end Type Siloxanes. In addition to these general-purpose products, Co-Formula can also provide coating and plastic additives, silicone polymers and offer customized solutions for customers worldwide.
