Case 1: Cement walls. Comprehensively check whether the cement walls that need to be painted in the rough room are solid and flat. If the plastering layer on the wall is not strong enough or there are large cracks and holes, it is recommended to complain to the developer or the property and ask them to redo it. If individual holes are repaired by yourself, plaster can be used to fill them. If the flatness of the wall is poor (the error is greater than plus or minus 5mm), plaster leveling should be considered first.

When using cellulose ethers in concrete, we will consider the content. Analyze it for you today. When the content does not exceed 0.05%, its participation can significantly improve the fluidity and viscosity of the foamed concrete slurry. After dissolving, a wet flexible film is formed between the solid particles and air bubbles, providing excellent smoothing during mixing. This also allows the bubbles to become self-aligning "balls" in the slurry during impossible periods of disillusionment, effectively improving the flowability of the fresh slurry.

In ready-mixed mortar, the addition amount of cellulose ether is very low, but it can significantly improve the performance of wet mortar and is a major additive that affects the construction performance of mortar. Reasonable selection of cellulose ethers of different varieties, different viscosities, different particle sizes, different viscosity degrees and addition amounts will have a positive impact on the improvement of dry powder mortar performance. At present, many masonry and plastering mortars have poor water retention properties, and the water slurry will separate after a few minutes of standing.

Putty powder additive is the base material for wall repair and leveling, and it lays a good foundation for the next steps of decoration (painting and wallpaper). There are two types of interior walls and exterior walls. Exterior wall putty must be resistant to wind and sun, so it has high adhesion, high strength and a slightly lower environmental index. The interior wall putty has a good comprehensive index, which is healthy and environmentally friendly, so the interior wall should not be used externally, and the exterior wall should not be used internally. Usually putties are stucco or cement based, so rough surfaces are easier to bond firmly. However, a coat must be applied to the base during construction to seal the base and improve adhesion of the wall surface so that the putty can

Cellulose ether offer Daily chemical grade hydroxypropyl methylcellulose is a synthetic high molecular polymer prepared by chemical modification with natural cellulose as raw material. Cellulose ethers are derivatives of natural cellulose. The production of cellulose ethers differs from synthetic polymers. Its most basic material is cellulose, a natural polymer compound. Due to the special structure of natural cellulose, cellulose itself does not have the ability to react with etherifying agents. However, after processing the bulking agent, the strong hydrogen bonds between and within the molecular chains are broken, and the activity of the hydroxyl groups is released into alkaline cellulose with reactive ability.