Multi-component polyurethane coating and manufacturing process thereof

The invention relates to the technical field of coatings, and discloses a multi-component polyurethane coating which is composed of a component A and a component B, wherein the component A is prepared from the following raw materials: modified hydroxy acrylic resin, functional filler, corrosion-resistant polyether glycol, a flatting agent and butyl acetate; the component B is prepared from the following raw materials: a toluene diisocynate-trimethylolpropane polymer, a hexamethylene diisocyanate tripolymer and ethyl acetate. The modified hydroxy acrylic resin, the corrosion-resistant polyether glycol and the functional filler are prepared to participate in the preparation process of the polyurethane coating, so that the prepared polyurethane coating has excellent adhesive force, corrosion resistance, ultraviolet resistance and oxidation resistance, and also has a good matte effect; a delustering agent does not need to be additionally added, and the service life is long. 本发明涉及涂料技术领域，公开了一种多组分聚氨酯涂料，该种涂料由甲组分与乙组分组