The main reason is that the putty layer is hollowed and foamed. The main reason is that there is gas between the base layer and the putty layer, and why the air does not diffuse into the normal layer and diffuse into the base layer, but appears in the middle. The main reasons are as follows: : improper treatment of the base layer, so that the contact between the putty layer and the base layer is not tight enough to form an interlayer; there is a dense layer between the base layer and the putty layer, such as interface agent or wall solid without water for interface treatment, so that the air cannot diffuse normally to the base layer. Solution: If the wall bubble or empty drum is small, it can be treated by sanding and then treated with wall solidification, and then scraped; if the wall is large, it has caused large area to fall off, it is recommended to use all the walls after eradication. Solid treatment, then batch scraping.

Putty plays an indispensable role in wall decoration. Whether it is interior or exterior walls, putty is an important material to ensure that the wall surface is flat, smooth and beautiful. However, compared with interior wall putty, exterior wall putty has some unique functions due to its special use environment and functional requirements.

Tile adhesive is a crucial material for laying tiles, directly affecting their bonding strength and long-term durability. Among its components, cellulose is a key additive that significantly enhances the adhesive's performance. If cellulose is not added to tile adhesive, several problems may arise.

Tile adhesive is a crucial material for construction, but sometimes it fails to provide the expected stickiness even after adding hydroxypropyl methyl cellulose (HPMC). Here’s a breakdown of the possible reasons.

Putty is a decorative material that can be used as a surface material to apply to walls, ceilings and other areas. Putty powder is divided into waterproof putty and ordinary putty, with different performances, applicable areas and construction effects.