Diethyl toluene diamine

Diethyl toluene diamine (CAS 75389-89-8), commonly known as DETDA, is an aromatic diamine curative used to crosslink epoxy resins and polyurethane systems.

Where is Diethyl toluene diamine used?

• High-performance epoxy formulations: chain extender and crosslinker producing cured systems with elevated heat resistance and chemical durability for industrial coatings and structural composites
• Polyurethane elastomers, particularly cast and RIM systems: tight hardness control and improved abrasion resistance in rollers, wheels, and seals
• Protective coatings for pipelines, marine structures, and industrial flooring: DETDA-cured epoxies where long-term chemical exposure resistance is a primary specification requirement
• Adhesive and sealant formulations: fast-developing green strength while maintaining flexibility across a broad service temperature range
• It controls cure rate, pot life, and final mechanical performance in demanding polymer applications.

Commercial specifications

• Purity specifications typically at 98% or higher depending on the specific supplier
• Packaging options generally include drums and IBC containers