NOVELTY - A heavy quick-drying weather-resistant and abrasion-resistant coating comprises first component containing polyaspartic polyurea, wetting dispersant, thixotropic agent, water absorber, coupling agent, pigment, filler, matting agent, UV light absorber, scratch-resistant and stain-resistant slip agent, leveling agent, defoamer and diluent; and second component containing elastic hydroxy resin, polyol, aliphatic diisocyanate, nanomaterial, coupling agent, catalyst, cyclohexanone and propylene glycol monomethyl ether acetate.    USE - Weather-resistant and abrasion-resistant coating used for wind turbine blades.    ADVANTAGE - The coating has excellent weather resistance, high tensile strength and elongation at break, and good pollution resistance and freezing resistance; prolongs service life of wind turbine; and reduces maintenance cost.    DETAILED DESCRIPTION - A heavy quick-drying weather-resistant and abrasion-resistant coating comprises (wt.%) first component containing polyaspartic polyurea A (30-55), polyaspartic polyurea B (10-30), wetting dispersant (0.8-2), thixotropic agent (1-3), water absorber (1-3), coupling agent (0.5-3), pigment (10-15), filler (5-15), matting agent (3-6), UV light absorber (0.1-1), scratch-resistant and stain-resistant slip agent (0.1-3), leveling agent (0.1-1), defoamer (0.01-0.5) and diluent (5-10); and second component containing elastic hydroxy resin (30-60), polyol (5-20), aliphatic diisocyanate (15-30), nanomaterial (1-10), coupling agent (0.1-1.5), catalyst (0.01-0.1), cyclohexanone (5-10) and propylene glycol monomethyl ether acetate (5-10). The ratio of isocyanate group/hydroxyl group (-NCO/-OH) in first and second components is 0.8-1.2. An INDEPENDENT CLAIM is included for preparation of coating by:    (A) adding polyaspartic polyurea to a dispersing tank; adding diluent (20-80% of total amount), wetting dispersant, thixotropic agent, water absorber and coupling agent; and dispersing at high speed for 20-60 minutes to obtain first mixture; and    (B) stirring at low speed; gradually adding pigment, filler, matting agent, UV light absorber, scratch-resistant and stain-resistant slip agent, leveling agent, defoamer and diluent (10-80 of total amount) to the first mixture; dispersing at high speed for 20-40 minutes, milling until fineness of less than or equal to 35 mu m, adjusting viscosity with diluent to obtain first component, and packing; mixing elastic hydroxy resin, polyol, cyclohexanone, propylene glycol monomethyl ether acetate and coupling agent, stirring at 70 degrees C for 1 hour, heating to 120 degrees C, refluxing and dewatering, cooling to 70 degrees C, adding nanomaterial, dispersing for 2 hours, gradually adding aliphatic diisocyanate and catalyst, preserving heat and reacting for 3-5 hours under nitrogen protection, cooling, and packing to obtain second component; and uniformly mixing first and second components according to NCO/OH ratio of 0.8-1.2, and packing.