Silane Coupling Agents | Adhesion Promoters | Amino Silanes | Surface Modifiers

SiSiB® PC1251

Synonym: Aminoethylaminomethyltriethoxysilane;

Chemical Structure


SiSiB® PC1251 is a bifunctional organosilane possessing two reactive amino groups and hydrolyzable inorganic ethoxysilyl groups. Due to the nature of its amino group, this substance reacts as a strong base. The silane hydrolyzes autocatalytically in the presence of moisture (ethanol is released) to form silanols, which can then react with themselves to produce siloxanes or can bind to inorganic substrates. As a bifunctional organosilane, it can bind to both inorganic materials and organic polymers to function as a molecular bridge between organic and inorganic substrates.

The close proximity of the nitrogen atom to the silicon atom can accelerate hydrolysis reaction compared to (amino-propyl)silanes .

Typical Physical Properties

Chemical Name: Aminoethylaminomethyltriethoxysilane
CAS No.: N/A
Formular: C9H24N2O3Si
Molecular Weight: 236.38
Boiling Point: 256°C [760mmHg]
Flash Point: 109°C
Color and Appearance: Clear to straw liquid
Density [25°C]: 0.967
Refractive Index [25°C]: 1.443
Purity: 97.0% by GC


SiSiB® PC1251 can be used as an adhesion promoter in sealants, adhesives and coatings.

SiSiB® PC1251 can be used as a surface modifier for fillers.

SiSiB® PC1251 can be used in the production of silyl-modified polymers which serve as binders in adhesives and sealants.


Net weight 200Kg steel drum or 1000Kg IBC container, for more details, please visit Packing Centre.

Technical Library

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