The invention discloses a single-component water-based natural
drying finishing coat for a construction crane and a preparation method thereof. The
raw material formula of the single-component water-based natural
drying finishing coat comprises the following components by weight percent: 40-50% of water-based resin, 1-3% of dispersant, 4-20% of coloring
pigment, 8-15% of filler, 0.5-1.5% of anti-
settling agent, 0.5-1% of leveling
wetting agent, 1-2% of thixotropic agent, 0.5-1% of
defoamer, 0.1-0.8% of
mildew preventive, 1-5% of coalescing agent, 0.5-1% of neutralizer and 10-20% of deionized water. The invention also discloses the preparation method of the single-component water-based finishing coat. The film of the water-based natural
drying finishing coat is curable at the
room temperature, energy-saving and environmental friendly, and capable of meeting the requirements of safe production of enterprises; in the meantime, the film is good in closure to a primer, and has excellent early-stage waterproofness and
ageing resistance; the single-component water-based finishing coat is matched with a
room temperature curable water-based double-component
epoxy primer in use, so that the film formed is excellent in
corrosion resistance, and the comprehensive properties of the single-component water-based natural drying finishing coat are up to the property indexes of similar
solvent type finishing coats.