Ethacure 300 for Spray Coating Application
1. Product Overview:
Ethacure 300(DMTDA) is a liquid aromatic diamine polyurethane curative. Cast polyurethane stress/strain physical properties are excellent. At similar hardness, these properties compare favourably with other diamine curatives.
Ethacure 300 curative is convenient to use because it is a liquid at room temperature and is processed at room temperature.
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.

