The invention discloses an anti-crack and anti-falling
coating and a preparation method, which belong to the technical field of coatings. The
coating is prepared from the following components: modified
polyurethane, modified
epoxide resin,
glass fiber, aluminum
oxide,
sodium stearate, paste attapulgite clay,
putty cream, kieselguhr, a defoaming agent, a filling agent,
pigment, and appropriate amount of water. The preparation method comprises the steps of weighing the modified
polyurethane and the modified
epoxide resin, adding into a reaction kettle, adding appropriate amount of water, and carrying out mixed reaction to obtain a mixture a1; adding the paste attapulgite clay, uniformly stirring, putting in an ultraphonic condition, and obtaining a mixture a2; adding the
putty cream, the kieselguhr, the defoaming agent and the filling agent, stirring, shearing, adding a
pigment, and uniformly mixing to obtain the
coating. The coating provided by the invention not only has a better waterproof and anticorrosion effect, but also has a better anti-crack and anti-falling performance. In addition, the preparation method is simple and practicable, and has a better application value.