【涂装知识】墙面开裂？别再让真石漆背“黑锅”了！
真石漆的最终装饰效果是品质的直接体现，在墙面开裂的问题上，首先想到的是外墙真石漆涂料质量不合格，但是事实上绝大多数外墙真石漆开裂问题都是由于施工不规范导致。
1.建筑墙面缺陷导致饰面开裂
墙体本身存在的一些质量问题，例如墙面空鼓，浸水后材料收缩导致外部涂料出现裂纹。
解决措施：如果是外墙基面自身的问题，只需沿着开裂的方向，均匀地剔开空鼓的墙面，建议采用弹性腻子打底，然后整体找平，最后进行真石漆涂料的施工工序。
2.真石漆腻子过厚
真石漆施工前必须先刮涂腻子层，腻子单次批刮过厚，会出现干燥不均匀现象，进而引发持续性开裂，这种开裂多数发生在阴阳角/墙面交角等难以完全达到平。
解决措施：解决腻子层的开裂非常简单，只需要在腻子不平整处局部打磨，再用腻子进行简单修补即可。
3.水泥砂浆抹灰层开裂
墙面做抹灰时，水泥砂浆没有干透就进行批灰，造成水泥砂浆干透后裂开，导致装修完毕后出现乳胶漆裂纹。
解决措施：这种情况下的墙面开裂如果要补救相对会麻烦一些，若墙面整体出现不规则裂纹，就需要整体剔除，再重新施工。
4.已施工涂层开裂
涂刷底漆、面漆时，没有等前一遍漆干透就开始后道施工，收缩率不一致导致应力扭曲结合面，引起面漆开裂。
解决措施：如果只是表面漆膜的龟裂，用细砂纸将裂纹打磨掉，重新涂刷就可以了。
5.墙面大面积裂痕产生，无法局部修复怎么办?
解决措施：
第一道，首先要先将开裂处刮净，再用腻子重新刮补，避免墙面再次渗水、进灰。
第二道，用专用纸带进行封口，最后用粘胶黄带再次封边，等干燥后再涂刷上面漆，这样能有效地保证基础层的牢固和稳定，避免墙面开裂加剧。
墙体基面的开裂属于结构性开裂，修补只能维持表面效果不受剧烈影响，一旦墙体发生波动或位移，开裂仍有可能加剧，因此要使修补达到永久效果应避免结构性施工问题的产生。
小编提醒：
真石漆开裂的原因有很多种，墙面开裂除了房子本身的质量问题，更多的还是施工不规范引发的问题，涂料的问题在用户打算购买之初就已经决定。所以工程用户挑选涂料时，更要注意监督考核墙面施工工艺,"料"与"工"两手抓、两手都要硬,如此才能解决甚至能提早规避真石漆开裂的各种问题。
凯尔涂料内外墙涂料配套产品，质量保障。如需内外墙涂料采购和报价可咨询在线客服。南天涂料从涂料生产到施工，能为您提供一条龙点对点服务，让您省心。
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