The invention discloses an inorganic waterproof anticorrosive
coating and a preparation method thereof. The
coating is composed of the following raw materials:
silicon sol,
calcium sulphate
whisker, a
pigment, a filling agent, an
ethylene-propylene
emulsion,
propylene glycol, a pH
regulator, a dispersing agent, a film-forming aid, a defoaming agent, a
thickening agent and water. The preparation method comprises the following steps: weighing all the raw materials in proportion, and dividing the defoaming agent into a part A and a part B which are equal in weight; adding water in a container, adding the
silicon sol, the dispersing agent, the part A of the defoaming agent, the
propylene glycol and the pH
regulator at a low rotating speed, and uniformly dispersing; adding the
pigment, the filling agent and the
calcium sulphate
whisker at an increased rotating speed, and dispersing the materials until the grain
fineness is less than 50mu m; sequentially adding the part B of the defoaming agent, the film-forming aid, the
ethylene-propylene
emulsion and the
thickening agent at a reduced rotating speed, and uniformly dispersing. The
coating disclosed by the invention has excellent waterproof, anti-
corrosion and anti-seepage properties, and is non-toxic and environmental-friendly; and the preparation method is simple in operation, convenient to produce, low in requirements on equipment, and suitable for industrial
mass production.