DETDA — The Liquid Amine Powering High-Performance Polyurea & Polyurethane

A spray polyurea membrane curing in seconds on a concrete roof. A polyurethane elastomer part demolded in minutes via RIM. Behind both: Diethyltoluenediamine (DETDA) — the liquid aromatic diamine that outperforms traditional solid curatives like MOCA.

 Why DETDA Wins

• Liquid & Low-Viscosity — Pourable at room temperature, no melting or dust handling required. Easy to meter, mix, and pump — a game-changer for automated spray and RIM lines.

• Fast & Controlled Cure — Rapid reaction with isocyanates forms seamless, durable membranes in seconds, minimizing sensitivity to humidity and temperature on the job site.

• Superior Mechanicals — Delivers high tensile strength, excellent tear and abrasion resistance, and outstanding dynamic properties — comparable to MOCA but with lower toxicity and zero dust hazards.

 Where It Performs

Spray Polyurea (SPUA) — The go-to curative for waterproofing and protective coatings in construction, infrastructure, and automotive. Fast gel time means vertical and overhead surfaces cure without sagging.

Polyurethane Elastomers — Ideal chain extender for RIM (Reaction Injection Molding) and cast CPU parts, from industrial rollers to shoe soles, where toughness and demold speed matter.

Epoxy & Adhesives — Also serves as an aromatic diamine curing agent for epoxy resins, coatings, and structural adhesives requiring high thermal stability and hydrolysis resistance.

 The Bottom Line

DETDA replaces solid curatives with a cleaner, faster, safer liquid alternative — boosting throughput while delivering the mechanical performance demanding applications require.

We supply DETDA (CAS 68479-98-1) in stable bulk quantities, with technical support for polyurea and PU formulation.

DM us for samples, COA, or pricing.

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