Name: Evonik Dynasylan OCTMO Octyltrimethoxysilane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan OCTMO Octyltrimethoxysilane

Hydrophobic surface modification agent with excellent water repellency and oil resistance.
Reactive alkylsilane offering strong covalent bonding to hydroxylated surfaces (e.g., glass, silica, metals).
Low volatility and good hydrolytic stability under controlled conditions, enabling reliable processing.
Enables improved dispersion and interfacial adhesion in organic-inorganic hybrid systems.
Non-yellowing performance suitable for clear coatings and high-clarity composites.

Typical Applications Of Evonik Dynasylan OCTMO Octyltrimethoxysilane

Surface treatment of silica fillers in silicone rubber and RTV sealants.
Hydrophobization of mineral fillers (e.g., calcium carbonate, talc) for polymer compounding.
Adhesion promotion in automotive and architectural glass primers.
Moisture barrier enhancement in protective coatings for concrete and masonry.
Functionalization of nanosilica for stable dispersions in solvent-based and high-solids formulations.

Chemical Type	Organofunctional alkoxysilane
Product Form	Liquid
Appearance	Colorless to pale yellow clear liquid
Molecular Formula	C₁₁H₂₆O₃Si
Specific Gravity (20 °C)	0.94–0.96 g/cm³
Refractive Index (20 °C)	1.395–1.405
Solubility	Miscible with common organic solvents (e.g., alcohols, toluene, xylene); hydrolyzes in water
Storage Stability	≥12 months in sealed container at 5–30 °C, protected from moisture

Get in Touch with ERICW

Let competitive chemical materials go global.



Contact With Us:

E-mail: wangxingqiang@ericwchem.com


Have a Questions? Call Us:

15921782326


Add:

Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China