FIELD: chemistry.
SUBSTANCE: present invention relates to a two-component coating system at least comprising: (A) a polyisocyanate component consisting of (a) a polyisocyanate component based on an aromatic prepolymer having allophanate groups and (b) a polyisocyanate component based on (cyclo)aliphatic polyisocyanate, (B) amino functional cross-linking agents based on aromatic diamines, wherein up to 49 wt % of said amino functional cross-linking agents can be replaced with amino functional polymers based on aspartates. Also described is a coated substrate obtained using said system.
EFFECT: obtaining two-component coating systems which enable to obtain fast drying, transparent and hard coatings with good processing properties and a sufficiently long life.
11 cl, 1 tbl, 5 ex
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