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Polyaspartic polyurea resin FEISPARTIC F421
| Ⅰ Chemical formula and molecular weight | |
| ● Chemical Name: Aspartic Acid, N,N’-(methylenedi-4,1-cyclohexanediyl)bis-,1,1’,4,4’-tetraethyl ester | |
| ● ELINCS No.: 429-270-1 | |
| ● CAS No.: 136210-30-5 | |
| Ⅱ Properties and application | |
| ●F421 is a solvent free amine-functional resin.. It is a aspartic ester polymer as reactive partner for polyisocyanates. It’s the same model as NH1420, formulate high-solids, two-component polyurethane topcoats and solvent-free coating materials.Comparing Feiyang F420, F421 potlife is much longer. | |
| ● It can serve as chain extender or R component in polyurea coating. It can also react with –NCO functional HDI trimmer from which a longer gelling time and excellent yellow resistance can be achieved. Longer gelling time can also be obtained when reacted with MDI pre-polymer. Hybrid of polyurea and polyurethane can be achieved when F421 is blended with hydroxyl-functional resin e.g acrylic, alkyd. This can offer high solid content and faster dry time than ordinary polyurethane. It is widely used in protective /floor / elastic/weather resistant coating, waterproof, etc. | |
| ● Main Feature 1. High solid content with low viscosity. 2. Faster curing time in aliphatic system. 3. Offering excellent physical properties like high hardness, flexibility, elongation(400%), tear and tensile strength(25MPa). 4. Great weather and saline water resistance. 5. Cost efficiency. |
|
| ⅢQuality standard | |
| Item | Specifications |
| Molecular Weight | 554 |
| Appearance | Transparent liquid |
| Solid Content | 97%±2% |
| Amine value(mg KOH/g) | 180-210 |
| Amine Equivalent（g/mol） | 277 |
| Hydroxyl value Equivalent | 6.13-6.14 |
| Viscosity mpa.s/25℃ | 900-1200 |
| Relative density(25℃) | 1.06 |
| Flash Point(/℃) | 90-95 |
| Ⅳ Package and storage | |
| ● 200KG/Drum, 4Drums/pallets, 80Drums/container or 1Ton/IBC tank, 20IBC tank/container. | |
| ● F421 resin must be stored in tightly sealed containers to prevent contact with moisture. Recommended storage temperatures are 0°-40°C (32°-104°F). The shelf life of this product is 12 months when stored in closed original containers at 77°F (25°C). | |