Siwin is a leading manufacturer and supplier of organosilanes for over 15 years.

Siwin’s strength is not only providing specialty silane, for example isocyanate silanes but also innovative silanes such as a-silanes. Their most important property is the extremely high reactivity of the Si-alkoxy groups.  

Siwin is the one of the earliest alpha amino silane coupling agent manufacturer. Siwin alpha silanes include  

Siwin-ND22 Diethylaminomethyltriethoxysilane,  

Siwin-ND42 (N-Phenylamino)methyltriethoxysilane,  

Siwin-ND43 Dichloromethyltriethoxysilane and  

Siwin-ND31 (N N-Diethylaminomethyl)trimethoxysilane

The nature of the “bridge construction” determines the application properties. a-Silanes, that is, silanes with a methylene bridge instead of the usual propylene spacer between the silicon  

atom and the functional group, are highly reactive and accordingly have huge application potential.

The organic functional group in alpha silane is closer to the silicone atom compared with traditional gamma silane coupling agent. The close proximity of the nitrogen atom to the silicon atom can accelerate hydrolysis reaction compared to (amino-propyl) silanes.

Siwin alha silanes are recommended to make alkoxy type silicone sealants, acting as cross-link agent and catalyst, without using traditionally tin catalyst, is a good choice for producing alkoxy type RTV sealants.