TDS of ASPARTIC ACID HF-520

Ⅰ Chemical formula and molecular weight

●  Chemical   Name: Aspartic Acid,  Polyaspartic Polyurea Resin, N,N'-[methylenebis(2-methyl-4,1- cyclohexanediyl)]bis-, 1,1',4,4'-tetraethyl ester

● ELINCS No.: 412-060-9

● CAS No.: 136210-32-7

Ⅱ Properties and application

●Aspartic Acid HF-520 is Aminofunctional co-reactant for polyisocyanates,it’s the same model as NH1520, could be used for the formulation of high-solids, two-component polyurethane topcoats and solvent-free coating materials.

● Aspartic Acid HF-520 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 mixing with Aspartic Acid F420 to achieve a pure aspartic polyurea coating with high build and fast dry two pack coating system. Aspartic Acid HF-520 is also compatible with other hydroxyl-functional resin such as acrylic, alkyd resin. It is widely applied on formulating variety of protective coatings.

● 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 weathering and saline water resistance

ⅢQuality standard

Item                                                Specifications

Appearance                                     Slight yellow transparent liquid 

Molecular Weight                            582

Solid Content                                   96%±2%

Amine value(mg KOH/g)                 189-193

Amine Equivalent（g/mol）            291

Viscosity mpa.s/25°C                       900~1300

Relative density(25°C)                     1.06±0.02

Flash Point(/°C)                                97

Ⅳ Package and storage

● 200Kgs/Drum, 4Drums/pallets, 80Drums/container or 1Ton/IBC tank.

● Aspartic Acid HF-520 resin must be stored in tightly sealed containers to prevent from contacting with moisture. Recommended storage temperatures are 0°-40°C (32°-104°F). The shelf life of Aspartic Acid HF-520 is 12 months when stored in closed original containers at 77°F (25°C).