The invention belongs to the technical field of
building construction, and discloses a GRC decorative line anti-
cracking method. The GRC decorative line anti-
cracking method comprises the following steps that seam repairing is conducted, specifically, sundries such as floating dust at the seam repairing position are removed, the seam repairing position is watered to be wetted completely, buildingglue and
cement are stirred according to the proportion of 1:3 until a lump-free sticky state is achieved,
glass fabric is placed at a seam, stirred and prepared building
adhesive is evenly embedded into the seam to be compacted and pressed smoothly and is flush with the surface of a component, and curing is conducted actively after seam repairing; and waterproof treatment is conducted, specifically, after seam repairing is completed, waterproof treatment is conducted on all the seam positions, the width is 100 mm, waterproof glue
powder is smeared, and the smearing thickness is 2 mm. The problems that protruding after repairing exists, and a product is not straight, not attractive and is prone to
cracking are solved.