Name: Evonik Dynasylan PTEO Propyltriethoxysilane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan PTEO Propyltriethoxysilane

Highly effective coupling agent for enhancing adhesion between organic polymers and inorganic substrates such as glass, silica, and metal oxides.
Hydrolytically stable ethoxy groups enable controlled condensation kinetics and improved shelf life compared to alkoxysilanes with methoxy functionality.
Propyl bridge provides excellent hydrophobicity and chemical resistance in cured systems without compromising flexibility.
Low volatility and favorable handling properties support safe industrial-scale processing and formulation integration.
Compatible with a broad range of resins including epoxies, polyurethanes, acrylics, and unsaturated polyesters.

Typical Applications Of Evonik Dynasylan PTEO Propyltriethoxysilane

Surface treatment of fillers (e.g., silica, calcium carbonate) in high-performance rubber and thermoplastic composites.
Adhesion promoter in automotive sealants, structural adhesives, and windscreen bonding systems.
Moisture-curable primer additive for coatings on aluminum, galvanized steel, and concrete substrates.
Functional modifier in fiber-reinforced polymer (FRP) composites for aerospace and wind energy applications.
Key ingredient in silane-modified polymers (SMPs) used in construction joint sealants and façade systems.

Chemical Type	Organofunctional alkoxysilane
Product Form	Liquid
Appearance	Colorless to pale yellow clear liquid
Molecular Formula	C₉H₂₂O₃Si
Boiling Point (at 1013 hPa)	Approx. 235 °C
Density (at 20 °C)	0.94–0.96 g/cm³
Refractive Index (at 20 °C)	1.405–1.415
Solubility	Miscible with common organic solvents; hydrolyzes in presence of water

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