Putty-filled mud is a decorative material used to level the wall. It is a thick paste paint and a necessary product before painting. It is coated on the primer or directly on the object to remove uneven defects on the surface of the coated object. It consists of a small amount of paint-based additives, a large amount of fillers and an appropriate amount of color pigments, mainly iron red, carbon black, chrome yellow and so on.

Brief introduction of materials

Usually putty is embedded with hydrated lime first, and then ordinary putty is approved. Although this can save money, it has buried hidden dangers since then. The hydrated lime in the wall will react with carbon dioxide in the air to generate calcium carbonate volume expansion, which will lead to wall cracking and wall leakage and endanger the normal daily life of residents.