The invention discloses a high-
solid-content aliphatic acrylic
polyurethane paint and a preparation method thereof. The high-
solid-content aliphatic acrylic
polyurethane paint comprises a component A, a component B and a component C, wherein the component A is prepared in the following steps: (1) preparing a 20%
polyamide wax pulp aid; (2) preparing
grinding color paste from the following components: high-
solid low-
viscosity hydroxy
acrylic resin, a
wetting agent, a dispersing agent, triethoxy
ethyl propionate,
titanium dioxide, spherical glass beads,
carbon black, 154L yellow,
bentonite and dimethylbenzene; (3) paint mixing: adding an
ultraviolet light absorber, the 20%
polyamide wax pulp aid, the flatting agent, a defoaming agent and n-
butyl acetate, so as to obtain the component A; the component B is prepared from aliphatic
isocyanate tripolymer; the component C is prepared by uniformly mixing n-
butyl acetate, PMA and S-100. The high-solid-content aliphatic acrylic
polyurethane paint is
environmentally friendly, the energy is saved, and the emission of poisonous and harmful gas is greatly reduced, so that the energy saving and the consumption reduction are achieved; the
coating period is short, and the efficiency is high; a once coated dry membrane is high in thickness, the
coating frequency is reduced, the
coating efficiency is improved, the labor intensity is alleviated, and a film is strong in
impact resistance.