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XYlink DMD230 is a kind of aliphatic aspartic-ester containing two secondary amino groups. It is recommended used to formulate solvent-free or high solid 2-K spray polyurea or polyaspartic ester coatings. Compared with common primary-amino raw material, DMD230 has a moderate reactivity, so it has good operating performance. The coatings can be applied with machine, also can be brushed. Thick coating layer can be formed successfully. The aliphatic coating film has good surface effect, good flexibility and mechanical properties, good corrosion resistance, weatherability and yellowing resistance.