Dimethylthiotoulenediamine(DMTDA) for Polyurethane Urea
1. Product Overview:
Dimethylthiotoulenediamine (DMTDA) is equivalent to Ethacure 300 (Albemarle). It is a liquid aromatic diamine with low chronic toxicity, is an effective curative for polyurethane cast elastomers.It is used in both hot and room-temperature casting. It can also be used as a slower chain extender for polyurethane urea and polyurea elastomers in reaction injection molding, structural reaction injection molding and hand-applied and spray coating applications, alone or in blends with DETDA curative.
2. Physical and chemical properties:
- Appearance: Light yellowish liquid
- Boiling point,():353
- Density (g/cm3) @(20): 1.2
- Pour point(): 4
- Flash point():176
- Viscosity,cps @ 20:690
- Equivalent weight with isocyanates: 107
- Equivalent weight with epoxy resins: 53.5
3. Quality standard:
- Appearance: light yellowish liquid
- Color value: 8
- Diamine content(%): 99.0
- Amine value(mgKOH/g): 525-535
- Moisture(%): 0.1
4. Safety information:
- Class: 9
- Packing group: III
- UN No.: 3082
- EINECS NO.: 403-240-8
5. Packing size:
- 25kg/steel drum
- 200kg/steel drum
- According to customer requirements, with special packaging
6. Considerations:
- To be nitrogen-sealed, if cannot be used as a packaging, should be subject to nitrogen-sealed storage.
- Avoid outdoor exposure or long-term placement under high temperature conditions.
- This product is in storage, preferably above 0 centigrade degree, can guarantee the same long-term quality.
- Darkens with time and exposure to air.

