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Coatings Ingredients
The material selection platform
Coatings Ingredients
by SpecialChem
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Technical Datasheet | Supplied by DKSH
F520 supplied by DKSH is an amine-functional aspartic ester resin. It is a solvent-free, low viscosity coating material and a reactive partner for polyisocyanates. High-solids, two-component polyurethane topcoats can be formulated using this resin. It offers a faster curing time in aliphatic systems. 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 mixing with F-420 and F-524 to achieve a pure aspartic polyurea coating with high build and fast dry two pack coating system. It provides excellent hardness, flexibility, elongation (400%), tear and tensile strength (25 MPa). It is resistant to weather and saline water. F-520 is also compatible with other hydroxyl-functional resin e.g. acrylic, alkyd. It is widely used in protective/ floor/elastic/weather resistant coating, waterproof etc. F520 has a shelf life of 12 months when stored at 0-40°C.
Product Type
Crosslinking / Coupling / Curing Agents
Chemical Composition
Aspartic Acid, Polyaspartic Polyurea Resin, N,N‘-[methylenebis(2-methyl-4,1-cyclohexanediyl)]bis-, 1,1‘,4,4‘-tetraethyl esterester
CAS Number
Physical Form
Yellow, transparent
Product Status
Applications/ Recommended for
  • Coatings > Solvent-Free/ High-Solids
  • Coatings Markets > Marine /Anti-Corrosive / Protective
Labels/Agency Rating
ELINCS No.: 412-060-9

F520 Properties


Value & Unit
Test Condition
Test Method
Molecular Weight
Solids Content
94 - 98 %
Amine Value
189 - 193 mg KOH/g
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