Is it better to use white cement or putty powder for the decoration or renovation of old walls?

Some homeowners have reported that their walls are made of the most primitive gray cement wall. During the renovation process, some workers introduced the construction process and said that they should first use one layer of white cement, then two layers of putty powder, and then apply two layers of topcoat. The owner feels that using white cement is not good and wants to use putty powder all the time. However, the worker said that white cement is more expensive and better than putty powder, and the product is replaced with a new one to help popularize the characteristics of white cement and putty powder bases on walls.

1. White cement is the abbreviation for white Portland cement, which is mainly composed of calcium silicate after burning raw materials with appropriate composition until partial melting. We know that calcium carbonate belongs to the category of alkaline salts, which will neutralize when exposed to acid. Over time, it will undergo weathering, resulting in peeling and peeling of the walls. When grinding cement, limestone not exceeding 5% by weight of cement is allowed to be added.

Features: 1) White cement is mostly used for decoration, and its manufacturing process is much better than ordinary cement.

2) White cement itself is very hard after being air dried, and when the hardness reaches a certain level, it will crack itself, which is the reason why many walls crack.

2. Putty powder is a type of building decoration material, mainly composed of talcum powder and glue. It also contains components of white cement itself, but it not only contains white cement, but also polymers such as acrylic acid emulsion. Usually, the whiteness of the putty is above 90 and the fineness is above 330.

Features: 1) Putty is a substrate used for wall repair and leveling, laying a good foundation for the next step of decoration (painting and wallpaper). Usually, putty is made of gypsum or cement-based materials, which makes it easier to bond firmly with a rough surface. However, during construction, it is still necessary to apply a layer of interface agent on the base layer to seal the base layer and improve the adhesion of the wall, so that the putty can better bond to the base surface. 2) Its cost is similar to that of white cement and glue, but its quality is vastly different. From alkali resistance to crack resistance to acid resistance, etc., it is significantly superior to white cement! For home decoration, it is recommended to use putty powder, which can be used by mixing with water and is very environmentally friendly.