What is the reason for the wavy concave and convex appearance of the aluminum plastic panel ceiling

First of all, in terms of materials, the quality of aluminum-plastic panels and the quality of all-purpose glue are not good, which will lead to unevenness.

If you rule out the problem of material quality, it is likely to be a problem of construction technology

1. During the construction of the base layer, the keel is not leveled or the base plate installed on the surface of the keel is uneven, which will lead to unevenness. In general, in this case, the surface is a small amount of deformation (most of them will follow the texture of the seam of the base plywood);

2. When the ceiling is made of aluminum-plastic panels (using single-sided aluminum-plastic panels), it is necessary to wipe the surface of the base plate with a dry cloth to remove dust, and then use the all-purpose glue to brush the aluminum-plastic board and the bottom of the base plate respectively, and let it dry until the all-purpose glue is dry and solidified to about 9 into a dry film, and then paste the aluminum-plastic board to the bottom of the base plate, and press and paste it firmly. After brushing the all-purpose glue, it is not hung until it is 9 dry and sticks it when it is dry film-like, which may lead to uneven aluminum-plastic panels. In this case, the surface is mostly round, elliptical and other block-like concave and convex deformation;

3. When pasting aluminum-plastic panels, the same aluminum-plastic panels have been repeatedly pasted, pulled apart, and re-pasted. The elasticity of the surface layer of the aluminum plate on the surface of the aluminum-plastic panel is limited, and it must be formed at one time during installation and cannot be stretched many times, otherwise there will be wavy concave and convex deformation;

It's better to send a picture up, otherwise it's hard to determine what the situation is, and estimate it for the time being.

Second, the third possibility is the majority.

The aluminum-plastic panel ceiling appears wavy concave and convex, which depends on the situation of your installation, which is divided into these situations, one is that the thickness of the aluminum-plastic panel is too thin, the second is that the material strength of the keel is not enough and the boom is too thin, and the third is because of the installation problems during the construction of workers.

The aluminum-plastic panel ceiling appears wavy concave and convex, the aluminum skin of the aluminum-plastic panel is thin, and the density of the keel is not enough, which may be concave and convex.

1.The uneven force of the ceiling exceeds the nuclear load, that is, the unreasonable ceiling hanging.

2.The quality is not up to par, ......

The reason for the quality of aluminum-plastic panels, good aluminum-composite panels will not have such problems.