The invention relates to the technical field of water-based wood paints, in particular to a water-based two-component
solid-color top
coating material for high-temperature
coating and a preparation method and application of the water-based two-component
solid-color top
coating material. The component A comprises 40-50 parts of a water-based secondary hydroxyl dispersion, 10-20 parts of a water-based hydroxyl
polyurethane dispersion, 0.5-1 part of a
wetting dispersant, 2-4 parts of a coalescing agent, 0.5-1 part of a defoaming agent, 3-5 parts of a
wax dispersion liquid, 0.5-1 part of a rheological agent, 1-3 parts of a low-molecular
polymer, 0.1-0.3 part of a pH
regulator, 1-3 parts of a delustering agent, 22-28 parts of white
slurry and 10-20 parts of water, and the component B comprises 70-80 parts of
water dispersible isocyanate, 20-30 parts of an environment-friendly
solvent and 0.5 part of a dehydrating agent. According to the water-based two-component
solid-color topcoat material for high-temperature coating and the preparation method and application thereof, the application performance of topcoat in a high-temperature environment is further improved under the condition that good properties such as high
hardness, high fullness and
high resistance are guaranteed.