The invention discloses a manufacturing method for a pure natural decorative
coating of interior and exterior walls of buildings. The method comprises the following steps: weighting the following raw materials by weight percent: 5-10% of glutinous
rice flour, 40-55% of red clay, 5-10% of
husk, 15-20% of
lime and 20-30% of water; crushing the glutinous
rice flour and gelatinizing under high temperature, thereby acquiring glutinous rice
slurry;
grinding the
lime to 325 meshes or above, thereby acquiring
lime powder;
grinding the red clay to red clay
powder at 250-350 meshes or above; cooking and disinfecting the
husk under high temperature, thereby acquiring disinfected
husk; dispersing and stirring the glutinous rice
slurry, lime
powder, red clay powder, disinfected husk and water and packaging, thereby acquiring the
coating. According to the invention, the
coating is prepared from various natural raw materials, so that the coating is nontoxic and harmless, can be used for decorating the interior and exterior walls of buildings, has the characteristics of simplicity in operation, high
adhesive property, quick
drying, waterproof and damp-proof effect, non-scaling and non-falling effect, no
toxicity, no harm, no
pollution and natural color and can achieve the heat-insulating, heat-preserving and soundproof functions when the coating is used for decorating the interior and exterior walls of buildings.