Diethyltoluenediamine

Diethyltoluenediamine (CAS 68479-98-1), commonly known as DETDA, is an aromatic amine curative used as a hardener and chain extender in epoxy and polyurethane systems.

Where is Diethyltoluenediamine used?

• High-performance epoxy formulations: curing systems for composite structures, industrial flooring, and protective coatings requiring heat and chemical resistance
• Polyurethane elastomers: chain extender
• Cast parts with high load-bearing capacity, including rollers, wheels, and mining screens
• Coatings and adhesives: fast-cure, solvent-resistant systems for infrastructure protection
• Pultrusion and filament winding for structural composites compatible with reactive resin systems
• These systems often require elevated glass transition temperatures to maintain structural integrity.

Commercial specifications

• Technical grade, purity commonly 98% or higher
• Drums and IBC containers for industrial volumes
• Low-color or low-viscosity variants offered by some suppliers for composite and elastomer processing