封闭作用：

Sealing effect:

墙面一般使用水泥，而水泥通常会返碱，会在表面形成一层碱霜，出现成片成片的白色或结晶体或粉末状等，造成花墙。出现泛碱的根本原因，大多数是底漆质量不过关或者是未使用底漆或者是腻子墙面碱性太强。封闭底漆可以起到封闭作用，缓解这种情况。

The walls are usually made of cement, which usually returns to alkali and forms a layer of alkali frost on the surface, resulting in flakes of white or crystalline or powdery materials, resulting in flower walls. The root cause of the occurrence of alkali efflorescence is mostly due to poor quality of the primer or the lack of use of the primer or the strong alkalinity of the putty wall. Sealing primer can play a sealing role and alleviate this situation.

保证吸水率一致：

Ensure consistent water absorption:

基底的含水率是必须高度注意的问题，尤其要注意同一墙面可能是不同材质，不同吸水率的基底材料，会导致外墙涂料终饰面出现水印或色差。

The moisture content of the substrate must be highly noted, especially when the same wall may be made of different materials with different water absorption rates, which can lead to watermarks or color differences in the final finish of the exterior wall coating.

安全可靠的预防方法是在施工前预先满涂厂家生产的抗碱封闭底漆，使基底吸水率均匀一致。另外基底吸水率不一致，会导致涂层干燥时间不一致，吸收不均匀，也会导致出现色差。

A safe and reliable prevention method is to fully coat the alkali resistant sealing primer produced by a professional manufacturer before construction, so that the water absorption rate of the substrate is uniform and consistent. In addition, inconsistent substrate water absorption can lead to inconsistent coating drying time, uneven absorption, and color difference.

墙面牢固性：

Wall firmness:

质量不过关的腻子层时间不久会粉化，如果没有底漆的保护，面层也会随之出现粉化甚至脱落。封闭底漆能够封固基底，使腻子层更加牢固，从而延长延长面层的寿命，提高施工质量。

The putty layer with poor quality will soon pulverize, and without the protection of the primer, the surface layer will also pulverize or even peel off. Sealing primer can seal the substrate, making the putty layer more firm, thereby extending the lifespan of the surface layer and improving construction quality.

底漆就有透明底漆、黑色底漆之分，那么，透明底漆和黑色底漆该如何选择，这两个颜色不同的底漆都有哪些区别呢？

Primers can be divided into transparent primer and black primer. So, how to choose between transparent primer and black primer, and what are the differences between these two different colored primers?

透明底漆和黑色底漆主要的不同在于墙面的分格，如果墙面分大格或者不分格的话，应该使用透明底漆，分大格的话后面还需用黑漆描线，而如果墙面是分小格的话则应该使用黑色底漆。

The main difference between transparent primer and black primer is the division of the wall. If the wall is divided into large or non divided compartments, transparent primer should be used. If the wall is divided into large compartments, black paint should be used to trace the lines. However, if the wall is divided into small compartments, black primer should be used.

透明底漆的综合性能要好于有色底漆，简单的了解，有色底漆是在透明底漆的基础上添加了各种颜色的色浆，色浆本身只是起到改变颜色的作用，一定量的色浆计入底漆中，会降低产品本身的性能，因此，在项目选材时，尽可能规定施工单位要选用透明封闭底漆。

The comprehensive performance of transparent primer is better than that of colored primer. Simply understood, colored primer adds various colors of color paste on top of transparent primer, and the color paste itself only plays a role in changing the color. A certain amount of color paste is included in the primer, which will reduce the performance of the product itself. Therefore, when selecting materials for the project, it is necessary to specify that the construction unit should choose transparent sealing primer as much as possible.

济南封闭底漆施工指导

Jinan Sealing Primer Construction Guide

1、在外墙底漆施工前，需要对外墙面进行一定的养护，要把墙面尽量整平，没有太明显的坑与凸起，更没有裂缝之类的硬伤，把这些整的差不多之后，再来开工。

1. Before the construction of the exterior wall primer, it is necessary to maintain the external wall surface as much as possible. The wall surface should be leveled as much as possible, without obvious pits or protrusions, and there should be no hard injuries such as cracks. After these have been roughly leveled, work can begin again.

2、在外墙面上刷上底漆，底漆所具有的作用是相当重要的，它有很强的粘结能力，把墙面的碱性封闭掉，使外墙底漆施工时可以粘结的十分牢靠；还可以使灰层、腻子底融为一体，这大大提高了外墙的防水性能；而且还可以比较节省涂料，使涂料涂刷时比较均匀，后的效果也会很不错。

2. Brush primer on the exterior wall surface, and the role of primer is quite important. It has strong bonding ability, sealing off the alkalinity of the wall surface, and making the exterior wall primer bond very firmly during construction; It can also integrate the gray layer and putty bottom, greatly improving the waterproof performance of the exterior wall; Moreover, it can also save paint, making the coating more uniform and achieving good results.

3、在这些做完之后才进行面漆的涂刷，不过在这之前要检查一下底漆有没有漏涂，上面有没有被污染，在完成这些后才来进行道面漆的施工，面漆的涂刷也要做到均匀，方向一致。更多事项就来我们网站咨询了解吧！

3. After these are completed, the topcoat should be applied. However, before doing so, it is necessary to check if the primer has been missed or contaminated. The first topcoat should only be applied after these are completed, and the topcoat should be applied evenly and in the same direction. For more information, come to our website Consult and understand!