exterior wall Sand in water How to solve the old cracks? I believe that friends who have contact with the exterior wall decoration should have experienced cracks in the exterior wall sand in water products. Many people think that the cracks must be a product quality problem. In fact, they are not. There are many reasons for the cracks in the sand in water products. So how to solve the old cracks in the exterior wall sand in water products? Now let's give you a detailed introduction.

In addition to the product itself, the external wall sand in water cracking may also be caused by the following reasons:

1. Temperature change: the sand in water multicolor coating is not completely dry after construction, and the climate suddenly becomes cold, resulting in different drying rates of the inner and outer layers. The surface layer has dried, but the inner layer has not yet dried, and cracks will appear.

2. Putty layer powdering and falling off: when the putty layer is powdering and falling off, the sand in water multicolor paint sprayed on the putty layer will fall off.

3. The putty layer is too thick: the putty is too thick for many times, which will lead to uneven drying, and cracks will be caused after spraying sand in water colorful paint.

4. Mixing water when using sand in water multicolor paint: sand in water multicolor paint does not need to be mixed with water, which will damage the performance of sand in water multicolor paint products, leading to cracking and falling off.

5. Over thick spraying: over thick spraying of sand in water multicolor coating at one time will also lead to cracking of the entire coating. It is good to spray a thin layer first, and then spray the second time after drying, generally 2-3mm.

6. If the first coating is not completely dry, the second coating will be sprayed: if the first coating is not completely dry, the second coating will cause cracking.

7. No finish coat is used or the finish coat is unevenly sprayed: no finish coat is sprayed or the finish coat is not completely dry after spraying, which may lead to rain invasion, which may also lead to the falling off of sand in water multicolor paint.

resolvent

1. After the putty construction is completed, it needs to be polished and cured. After the putty layer is completely dry, it can be sprayed with sand in water multicolor paint.

2. Sand in water multicolor paint shall be sprayed directly with a spray gun, and it is forbidden to use it with water.

3. During construction, pay close attention to weather changes and take preventive measures in advance. Relevant products shall be used according to the product construction process.

The above are the possible reasons and solutions for the cracking of sand in water products on external walls. If this situation does not occur, the construction guarantee is very important. To learn more Sand in water Relevant information or more, please read《 How about the villa exterior wall decoration sand wrapped product with water? There are so many advantages. Don't hesitate to use it directly [Product analysis] 》。