Name: Evonik Dynasylan PTMO Propyltrimethoxysilane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan PTMO Propyltrimethoxysilane

Highly reactive alkoxysilane with propyl linkage for strong covalent bonding to inorganic substrates.
Excellent hydrolytic stability due to optimized methoxy group reactivity and molecular structure.
Enables efficient surface modification of fillers, pigments, and nanomaterials in non-aqueous systems.
Low volatility and favorable handling characteristics compared to shorter-chain alkoxy silanes.
Compatible with common organic polymers including polyurethanes, epoxies, and acrylics.

Typical Applications Of Evonik Dynasylan PTMO Propyltrimethoxysilane

Surface treatment of silica, glass fibers, and calcium carbonate in high-performance composites.
Adhesion promotion in moisture-curing sealants and structural adhesives.
Functionalization of metal oxide nanoparticles for dispersion stabilization in coatings and inks.
Reactive coupling agent in thermoset resin formulations for automotive and aerospace components.
Enhancement of filler–polymer interfacial strength in silicone-modified RTV elastomers.

Chemical Type	Organofunctional alkoxysilane (propyltrimethoxysilane)
Product Form	Liquid
Appearance	Colorless to pale yellow clear liquid
Density (20 °C)	0.94–0.96 g/cm³
Refractive Index (20 °C)	1.385–1.392
Flash Point (PMCC)	≈ 22 °C
Solubility	Miscible with common organic solvents (e.g., alcohols, acetone, toluene); hydrolyzes in water
Storage Stability	≥ 12 months in sealed containers at 5–25 °C under dry conditions

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E-mail: wangxingqiang@ericwchem.com
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