At present, the main components of putty powder are talc powder and glue, which are divided into interior wall putty and exterior wall putty. The exterior wall putty should resist wind and sun, so it has large glue, high strength and slightly low environmental protection index. The comprehensive index of interior wall putty is good, healthy and environmental protection, so the interior wall is not used externally and the exterior wall is not used internally. During construction, it is still necessary to apply a layer of interface agent on the base course to seal the base course and improve the adhesion of the wall so that the putty can be better bonded to the base surface. Today, let's talk about the performance of the main function of putty powder?

一、抗开裂作用

1、 Anti cracking effect

装修的房子常见的问题就是墙面开裂，甚至在还没交房的时候就已经有墙面开裂的情况，好的腻子粉抗自裂是一项重要的产品指标，按照墙面腻子标准施工工艺施工，可以防止墙面开裂情况。质量不达标的腻子粉，会出现细裂纹，形式乌龟背，故称“龟裂纹”，龟裂纹常引起涂层的起壳、脱落，影响墙面美观。

The common problem of decorated houses is wall cracking. Even before the house is delivered, there is wall cracking. Good putty powder anti self cracking is an important product index. Construction according to the standard construction process of wall putty can prevent wall cracking. The putty powder with substandard quality will have fine cracks in the form of turtle back, so it is called "turtle crack". Turtle crack often causes the shell and fall off of the coating and affects the beauty of the wall.

二、平整美观

2、 Flat and beautiful

在装修过程中，用户要求墙面不仅是平整的，还要求光滑细腻。特别部分墙漆对墙面的细腻度要求更高。要提高光滑度，需要改良腻子基层的性能。

In the process of decoration, users require that the wall is not only flat, but also smooth and delicate. In particular, some wall paints have higher requirements for the fineness of the wall. To improve the smoothness, the performance of putty base needs to be improved.

三、填平作用

3、 Filling effect

平整是对墙面基本的要求，通常墙面平整度用靠尺和水平仪检测，平整度≤3mm。因而填充性是腻子的一项基本功能。在施工中不平整的情况比比皆是。例如：水泥砂浆面的凹凸不平，部分墙面的不平整，或顶棚在灯光下普遍的波浪起伏状，影响建筑物的美观。

Flatness is the basic requirement for the wall. Generally, the flatness of the wall is detected with guiding rule and level, and the flatness is ≤ 3mm. Therefore, filling is a basic function of putty. Uneven conditions can be found everywhere in construction. For example, the uneven cement mortar surface, the unevenness of some walls, or the general undulation of the ceiling under the light affect the beauty of the building.

如果水泥墙面或者墙面有坑洞的情况，建议使用抗裂粉刷基底先找平，抗裂粉刷基底找平墙面不收缩(大多数腻子粉进行坑、洞找平，待墙面干燥后，还会出现凹凸不平的现象，是因为腻子粉有收缩性导致)，再用耐水防潮腻子精细找平即可。

If there are pits on the cement wall or the wall, it is recommended to use the anti crack paint base for leveling first, and the anti crack paint base for leveling the wall does not shrink (most putty powders are used for pit and hole leveling, and there will be irregularities after the wall is dry, which is caused by the shrinkage of the putty powder), and then use the water-resistant and moisture-proof putty for fine leveling.