Description

1.Basic Product Information

Product Name: DETDA (Diethyl Toluene Diamine)

Alias: E-100, Aromatic Amine Chain Extender, Polyurea Special Curing Agent

CAS No.: 68479-98-1

Molecular Formula: C₁₁H₁₈N₂

Molecular Weight: 178.28g/mol

Molecular Structure:

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Grade Type: Industrial high-purity polyurea/PU special grade

2.Product Overview

DETDA (E-100) is a high-efficiency aromatic diamine curing agent, also known as a premium chain extender specially formulated for polyurethane and epoxy resin systems. Featuring fast curing speed, high cross-linking density, excellent temperature resistance and superior mechanical reinforcement, E-100 outperforms traditional aliphatic amine curing agents. It is the core raw material for high-performance polyurea coatings, rigid PU elastomers, high-temperature resistant epoxy materials and industrial wear-resistant products. Cured end products deliver outstanding hardness, impact resistance, chemical stability and thermal stability, widely applied in high-end industrial anti-corrosion and wear-resistant engineering fields.

3.Typical Specifications

Test Item	Standard Specification
Appearance	Amber transparent oily liquid
Purity	≥ 98.0%
Amine Value (mgKOH/g)	480–520
Viscosity (25℃, mPa·s)	150–250
Moisture Content	≤ 0.10% max
Boiling Point	High boiling point, low volatility
Color Number (APHA)	≤ 150

4.Physical & Chemical Properties

Physical Properties

DETDA E-100 is a uniform amber transparent oily liquid at room temperature with moderate viscosity and excellent fluidity. It features low volatility and good thermal stability, maintaining stable physical state under normal and medium-high temperature environments. The product has excellent compatibility with isocyanates, epoxy resins, organic solvents and various PU additives, with no delamination or precipitation during mixing. It adapts perfectly to high-speed spraying, pouring and manual coating construction processes for industrial production.

Chemical Properties

Equipped with high-activity aromatic amino groups, DETDA E-100 can undergo rapid and stable cross-linking reaction with isocyanate (-NCO) and epoxy groups. Its unique aromatic molecular structure endows the cured system with high rigidity and stable chemical performance. Compared with conventional chain extenders, it features fast curing speed, low exothermic heat and thorough cross-linking reaction. The cured products exhibit excellent high-temperature resistance, solvent resistance, hydrolytic stability and anti-aging performance, maintaining stable mechanical properties in harsh corrosive and high-temperature environments.

5.Main Applications

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9.Finemax Advantages

Finemax Chemical provides high-purity DETDA E-100 aromatic amine chain extender with stable batch quality and reliable performance. Our E-100 features accurate amine value, low moisture, moderate viscosity and fast and stable curing activity, perfectly matching polyurea spraying and high-performance PU/epoxy formulation requirements. With strict quality control, mature production technology and sufficient inventory supply, we provide cost-effective and stable raw material solutions for global industrial anti-corrosion coating, elastomer and new material manufacturers.

10.Inquiry & Service

Free Sample Support | Custom Technical Indicators | Professional Formulation Guidance

Contact us to get the latest factory wholesale price and complete technical datasheet.

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