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真石漆施工时颜色发黄和遇水发花

日期:2016年7月27日 浏览[851]

颜色发黄


Yellow color


真石漆发黄,主要是真石漆中的乳液质量有问题。一些真石漆生产厂家采用较差的丙烯酸乳液等作为胶粘剂,乳液经过紫外线照射会分解,从而析出有色物质,最终出现黄变现象。


Stone yellow, is a major problem in the quality of lacquer emulsion. Lacquer manufacture by poor acrylic emulsion as adhesive, emulsion after UV irradiation will break down, in order to separate non-ferrous material, culminating in yellowing phenomenon.


遇水发花


Water flooding


有些真石漆在经过了雨水冲刷浸泡后,会产生发花现象,待天气晴朗后又逐渐恢复到原来的状态,循环反复。原因有以下几个方面:(


Some lacquer in after the rain wash soak, will produce the phenomenon of flooding, until the weather gradually returned to its original state, and the cycle repeats. The reasons are as follows: (


1) 基层酸碱性的影响,基层酸碱度大于9,就会发花;


1) effect of pH level, basic pH greater than 9, will be dazzled;


(2) 施工中漆膜薄厚不匀, 容易造成发花,真石漆用量太少、涂膜太薄也会造成发花;


(2) the film thickness in the construction is not uniform, easy to cause flooding, too small amount of lacquer coating is too thin will cause flooding;


(3) 真石漆的纤维素比例太大,也易造成发花。


(3) the proportion of cellulose lacquer is too large, but also easy to cause flooding.

 

 

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