One, should putty powder be mixed with cellulose?
No.
Currently, most putty powders available on the market are ready-mixed putty powders. Simply add the appropriate amount of water and mix thoroughly, and you can apply them to walls without needing to add any other materials.
Cellulose, a large-molecule polysaccharide composed of glucose, when added to putty powder, can:
Thickening: Cellulose can thicken to provide suspension and ensure uniform consistency, preventing sagging.
Moisture retention: Slows down the drying of the putty powder, assisting in the reaction of calcium-based materials with water.
Construction: Cellulose acts as a lubricant, enabling the putty powder to be applied smoothly.
However, this was necessary when the previous putty powder production process was not fully mature. Currently, putty powder already has excellent properties such as water retention, so adding cellulose is no longer required.
II. Methods and Techniques for Mixing Putty Powder
1、Mix the putty powder with water according to the correct ratio in a container, with a ratio of 1:0.5. Slowly stir the mixture. For increased efficiency, you can also use an electric mixer at high speed to achieve a better mixing effect.
2. When mixing, it should not be too dry, as this will affect the adhesion and lead to cracking on the wall surface later. However, it should also not be too wet, as this will result in waste. Therefore, the ratio should be carefully controlled.
3. After mixing, allow the putty powder to rest for 15-20 minutes. This allows the additives in the putty powder to fully dissolve. The quality of the putty powder can be assessed by mixing it with a putty board. If the putty paste does not drip when the board is turned upside down, it indicates good quality. Otherwise, the quality is relatively poor.