The invention relates to the technical field of coatings, and in particular to a thermochromic
coating for
metal, glass and
ceramic and a preparation method thereof. The thermochromic
coating comprises the following raw materials in parts by weight: 16-32 parts of
polyurethane resin, 6-14 parts of thermosetting
acrylic resin, 3-7 parts of fully-methylated amino resin, 16-34 parts of temperature-changing pigments, 0.5-1.5 parts of a
levelling agent, 1-3 parts of a defoaming agent, 0.5-1.5 parts of a dispersing agent and 23-45 parts of an
organic solvent. A paint film formed by the thermochromic
coating disclosed by the invention is level and smooth, bright in colour, good in
ductility and flexibility, excellent in
adhesive force for various primers and the matrixes of
metal, glass,
ceramic and the like, excellent in interlayer
adhesive force, capable of being re-coated, excellent in
flame-retardant and high-temperature-resistant performances, capable of still keeping a high-quality and complete paint
film coating in the case that a surface temperature is 200 DEG C, and excellent in acid-base resistance, boiling resistance, solution resistance,
weather resistance and
corrosion resistance.