Bis [3-(trimethoxysilyl) propyl] amine

Bis[3-(trimethoxysilyl)propyl]amine (BTMSPA, KH-170) is a disilyl secondary amino silane coupling agent, colorless to pale yellow clear liquid. It contains two trimethoxysilyl groups and reactive secondary amine sites. Its disilicon structure can form high crosslink density after hydrolysis, delivering superior bonding strength and hydrothermal resistance compared with conventional mono-amino silanes. The secondary amine can react with epoxy, polyurethane, STP and other resins, widely used in high-end sealants, filler modification and metal anti-corrosion pretreatment.