COATINGS WITH HIGH OFF-SPECULAR LiDAR REFLECTIVITY AND HIGH LIGHTNESS FLOP

The present invention relates to a basecoat composition, comprising (A) at least one film-forming polymer (A1), and in case of (A1) being externally crosslinkable, at least one crosslinking agent (A2); (B) at least one type of metal effect pigment (B); (C) a pigment mixture (C), comprising at least one non-carbon-black LiDAR reflecting pigment (C1) having according to CIELAB system 45° the values of L* < 17, a* > -4 and < 9, and b* > -4 and < 9, and at least one white LiDAR reflecting pigment (C2) having according to CIELAB system 45° the values of L* > 85, a* > -2 and < 2, and b* > 0 and < 6, (C2); and water and/or one or more organic solvents as component (D);wherein (C1) is present in a range from 0.005 to 2.0 wt.-% based on the total weight of the composition, and (C2) is present in a range from 0.20 to 10.0 wt.-% based on the total weight of the composition. The invention further relates to a method of forming a coating film making use of the basecoat composition, the thus obtained coating film and an at least partially coated substrate as well as the use of the coating in LiDAR applications. La presente invención se refiere a una composición de recubrimiento de base, que comprende (A) al menos un polímero formador de película (A1) y, en caso de que (A1) sea externamente reticulable, al menos un agente reticulante (A2); (B) al menos un tipo de pigmento de efecto metálico (B); (C) una mezcla de pigmentos (C), que comprende al menos un pigmento negro sin carbón, reflectante LiDAR (C1) que tiene, según el sistema CIELAB a 45°, los valores de L* -4 y -4 y 85, a* >-2 y 0 y