What is Dimethyl Thio-Toluene Diamine CAS 106264-79-3?
Dimethyl Thio-Toluene Diamine (DMTDA, Ethacure 300) CAS 106264-79-3 is a high‑performance aromatic diamine curing agent and chain extender, mainly a mixture of 2,4‑ and 2,6‑isomers. It is a low‑viscosity liquid at room temperature, widely used in polyurethane elastomers, coatings, adhesives and polyurea systems, serving as a superior alternative to MOCA with low toxicity and excellent processability.
Specification
| Item |
Value |
| Appearance |
Light yellow to amber transparent liquid |
| Density |
1.206 g/mL at 20 °C |
| Boiling Point |
200 °C (1.68 mmHg) |
| Viscosity |
600–900 mPa·s (25 °C) |
| Flash Point |
≥163 °C |
| Purity |
≥96% (total isomers) |
| Amine Value |
525–535 mgKOH/g |
| Moisture |
≤0.1% |
| Storage Condition |
Sealed, dry, 10–30 °C, away from light |
Feature
- Low Viscosity & Easy Handling: Liquid at room temperature; no heating required; convenient for automated dosing.
- Fast & Controlled Curing: Balanced reactivity with isocyanates; short demold time; wide processing window.
- Excellent Mechanical Properties: High tensile strength, tear resistance and hardness; good dynamic performance.
- Low Toxicity & Safety: Non‑MOCA, lower toxicity; meets environmental and safety standards.
- Good Compatibility: Compatible with various polyisocyanates, polyols and additives; stable in formulations.
Application
- Polyurethane Elastomers: Solid tires, rollers, seals, gaskets, belts and industrial rubber parts.
- Polyurea Coatings: High‑performance waterproofing, corrosion protection and floor coatings.
- Adhesives & Sealants: Structural adhesives, potting compounds and construction sealants.
- PU Foams & Composites: Rigid/flexible foams, spray coatings and fiber‑reinforced composites.
- Specialty Formulations: Castable polyurethanes, reaction injection molding (RIM) and automotive parts.
Packaging
Mikem offers flexible packaging options, including 200kg galvanized iron drums, 1000kg IBC totes and ISO tanks, all customizable to meet your specific needs.
