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外墻抗堿封閉底漆到底有多重要？

來源：http://m.wavc.cn 日期：2023-03-07 發布人：

如今外墻涂裝大多采用外墻涂料進行裝飾，抗堿封閉底漆很大的特點就是對混凝土有超強的附著力，防止水的滲透，抗堿隔離作用，對基層的堿分能有效隔離，防止堿分的滲出破壞涂層。對疏松粉化的基底進行補強作用，加固基底。外墻抗堿封閉底漆到底有多重要？

Nowadays, the exterior wall coating is mostly used for decoration. The great feature of the alkali resistant sealing primer is that it has super adhesion to the concrete, prevents water penetration, and has the effect of alkali resistance isolation. It can effectively isolate the alkali content of the base layer and prevent the alkali content from seeping out and damaging the coating. Reinforce the loose and powdered base. How important is alkali-resistant sealing primer for exterior wall?

1、封閉作用：墻面一般使用水泥，而水泥通常會返堿，會在表面形成一層堿霜，出現成片成片的白色或結晶體或粉末狀等，造成花墻。出現泛堿的根本原因，大都是底漆質量不過關或者是未使用底漆或者是膩子墻面堿性太強。其他如發生的變黃或顏色改變也大多與此有關。封閉底漆可以起到封閉作用，緩解這種情況。

1. Sealing effect: The wall is usually made of cement, and the cement will usually be re-alkali, which will form a layer of alkali frost on the surface, and flakes of white or crystal or powder will appear, resulting in flower wall. The basic reason for the occurrence of alkali is that the quality of the primer is poor, or the primer is not used, or the putty wall is too alkaline. Most of the other yellowing or color changes are also related to this. The sealing primer can play a sealing role and alleviate this situation.

2、保證吸水率一致：基底的含水率是建議高度注意的問題，尤其要注意同一墻面可能是不同材質，不同吸水率的基底材料，會導致外墻涂料很終飾面出現水印或色差，安全可靠的預防方法是在施工前預先滿涂廠家生產的抗堿封閉底漆，使基底吸水率均勻一致。另外基底吸水率不一致，會導致涂層干燥時間不一致，吸收不均勻，也會導致出現色差。

2. Ensure the consistency of water absorption: the water content of the base must be paid high attention, especially the same wall may be made of different materials, and the base materials with different water absorption will lead to watermarks or color differences in the final finish of the exterior wall coating. The safe and reliable prevention method is to fully coat the alkali resistant sealing primer produced by professional manufacturers before construction to make the water absorption of the base uniform. In addition, the inconsistent water absorption of the substrate will lead to inconsistent drying time of the coating, uneven absorption and color difference.
封閉底漆

3、墻面牢固性：質量不過關的膩子層時間不久會粉化，如果沒有底漆的保護，面層也會隨之出現粉化甚至脫落。底漆能夠封固基底，使膩子層更加牢固，從而延長延長面層的壽命，提高施工質量。

3. Wall firmness: The putty layer with poor quality will pulverize soon. If there is no primer protection, the surface layer will also pulverize or even fall off. The primer can seal the base and make the putty layer more firm, thus extending the service life of the surface layer and improving the construction quality.

作為用戶要清楚了解，透明底漆的綜合性能要好于有色底漆，簡單的了解，有色底漆是在透明底漆的基礎上添加了各種顏色的色漿，色漿本身只是起到改變顏色的作用，一定量的色漿計入底漆中，會降低產品本身的性能，因此，在項目選材時，盡可能規定施工單位要選用透明封閉底漆。更多產品事項可以隨時聯系我們http://m.wavc.cn了解！

As a user, you should clearly understand that the comprehensive performance of transparent primer is better than that of colored primer. Simply understand that colored primer is based on transparent primer with various color pastes added. The color pastes themselves only play a role in changing the color. A certain amount of color pastes will be included in the primer, which will reduce the performance of the product itself. Therefore, when selecting materials for the project, it is required that the construction unit should select transparent sealing primer as far as possible. For more product matters, please feel free to contact us http://m.wavc.cn Understand!

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