TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The coating composition further comprises 1-25 wt.% solid particles of an amino resin based polymer, optionally where the amino resin based polymer is a methyl urea based polymer. The coating composition is provided in two packs, a first pack comprising the film forming resin and a second pack comprising the polyisocyanate resin. Preferred Components: The polyamine(s) containing secondary amine groups are cyclic polyamine(s) containing secondary amine groups prepared by reacting at least one cyclic polyamine comprising primary amine groups with an unsaturated dialkyl ester. The polyamine(s) containing secondary amine groups is a poly aspartic ester amine. The amino resin based polymer is a crosslinked polymer. The polyisocyanate resin has an isocyanate equivalent weight of 280-500 g/equivalent. The polyamine(s) comprising secondary amine groups has an amine equivalent weight of 150-450 g/equivalent. The component (a) and component (b) are present in the coating composition in an amount so that the stoichiometric ratio of isocyanate groups:secondary amine groups is greater than 1.5:1 to a maximum ratio of 2.5:1. The polyamine containing secondary amine groups of the film forming resin has the structure of formula (X2-(NH-C(R3)(CH-R4-C(O)-O-R2)-C(O)-O-R1)a).X2 = linear or cyclic aliphatic hydrocarbon having a valency of at least 2 which is inert towards isocyanate groups at temperatures of up to 100 degrees C;R1, R2 = organic groups which are inert toward isocyanate groups at temperatures of up to 100 degrees C;R3, R4 = H and organic groups which are inert towards isocyanate groups at temperatures of up to 100 degrees C; anda = at least 2. EXAMPLE - Typical coating composition comprised of: 17 wt.% Amicure IC-3004 (RTM: Curing agent); 8.5 wt.% titanium oxide; 10.5 wt.% Deuteron MK (RTM: Amino resin based polymer); 10 wt.% sodium aluminosilicate powder; 3 wt.% additives comprising Ceraflour 996 (RTM: Micronized wax), BYK-077 (RTM: Solution of a polymethylalkylsiloxane), BYK-066N (RTM: Additive), Tego Airex 900 (RTM: Defoamer and deaerator), BYK-307 (RTM: Polyether modified polydimethylsiloxane), and Tinuvin 292 (RTM: Liquid hindered amine light stabilizer); 9 wt.% methyl N-amyl ketone; 10 wt.% 1-methoxy-2-propyl acetate; 1 wt.% methyl N-amyl ketone; and 31 wt.% Desmophen N3800 (RTM: Polyalcohol).