Shenzhen Feiyang Protech Corp., Ltd.
Shenzhen Feiyang Protech Corp., Ltd. Polyaspartic Polyurea Materials Researcher and Manufacturer
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FEISPARTIC F421 Polyaspartic Ester Resin
ⅠChemical formula and molecular weight
● Chemical Name: Polyaspartic Ester Resin, 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
ⅡProperties and application
● FEISPARTIC F421 Polyaspartic Ester Resin 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
| INDEX | VALUE |
| Appearance | Colorless to light yellow green transparent liquid |
| Hazen (Pt-Co) | ≤250 |
| Solid Content(％) | ≥99 |
| Amine value(mg KOH/g) | 190～215 |
| Amine Equivalent(g/mol) | 277 |
| Equivalently hydroxy content(%) | 6.13 |
| Viscosity(mpa.s/25℃) | 800～2500 |
| Relative density (25℃) | 1.06±0.02 |
Ⅳ Package and storage
● FEISPARTIC F421 Polyaspartic Ester resin must be stored in tightly sealed containers to prevent contact with moisture. Recommended storage temperatures are 0°-40°C (32°-104°F).
● Shelf life of this product is 12 months when stored in closed original containers at 77°F (25°C
● 200KG/Iron drum, 4drums/pallets, 16Ton/20GP.