Amine-terminated polypropylene glycol trimethylolpropane ether

Amine-terminated polypropylene glycol trimethylolpropane ether (CAS 39423-51-3) is a trifunctional polyetheramine built on a trimethylolpropane backbone. Also marketed as Jeffamine T-403.

Where is Amine-terminated polypropylene glycol trimethylolpropane ether used?

• Epoxy coatings and flooring: flexible, tough cured networks with improved impact resistance versus rigid aromatic amine curatives
• Adhesives and sealants: tunes pot life and elongation in structural and flexible bond lines
• Polyurea and spray elastomers: reacts with isocyanates to give fast-setting, durable films for protective coatings and industrial linings
• Plastics and polymer compounding: chain extender or surface modifier improving adhesion and compatibility at interfaces
• In epoxy and polyurea systems its three primary amine groups drive network formation as a reactive curing agent and crosslinker.

Good to know: Buyers should confirm amine value and equivalent weight with the supplier, as these govern stoichiometric calculations for formulation and processing.

Commercial specifications

• Drums and IBCs