膩子粉分為外墻膩子粉和內墻膩子粉，外墻膩子粉為什么不合適用到內墻？

　　Putty powder is divided into exterior wall putty powder and interior wall putty powder. Why is exterior wall putty powder not suitable for interior walls?

　　外墻膩子要抵抗風吹日曬所以膠性大、強度高，環保指數稍低。內墻膩子綜合指數較好，健康環保，所以內墻膩子粉不外用，外墻膩子粉不內用。

　　Exterior wall putty needs to resist wind and sun exposure, so it has high adhesive properties, high strength, and slightly lower environmental protection index. The comprehensive index of interior wall putty is good, which is healthy and environmentally friendly, so the interior wall putty powder should not be used externally, and the exterior wall putty powder should not be used internally.

　　歸根結底這都是由于內墻與外墻有所區別：

　　Ultimately, this is all due to the difference between the interior and exterior walls:

　　1、含堿量不同

　　1. Different alkaline content

　　總的來說外墻膩子粉的含堿量要高于內墻膩子粉。

　　Overall, the alkali content of exterior wall putty powder is higher than that of interior wall putty powder.

　　2、施工難易和價格不同

　　2. Construction difficulty and price differences

　　外墻膩子的施工難度要比內墻膩子的施工難度大的多，而通常來說外墻膩子價格要貴于內墻膩子。

　　The construction difficulty of exterior wall putty is much greater than that of interior wall putty, and generally speaking, the price of exterior wall putty is higher than that of interior wall putty.

　　3、環保性不同

　　3. Different environmental friendliness

　　由于外墻膩子要抵抗風吹日曬所以粘性大、強度高，但是環保指數就稍低。反之內墻膩子就比較健康環保，所以內墻不外用，外墻不內用。

　　Due to the need to resist wind and sun exposure, exterior wall putty has high viscosity and strength, but its environmental protection index is slightly lower. On the contrary, putty for interior walls is healthier and more environmentally friendly, so interior walls should not be used externally and exterior walls should not be used internally.

　　4、性能不同

　　4. Different performance

　　內墻膩子比較細膩，所以主要一遇到水就會出現空鼓現象甚至脫落;而外墻膩子就比較粗糙，但是防水性能很好。

　　The putty on the interior wall is relatively delicate, so it will mainly appear hollow or even peel off when it comes into contact with water; The exterior wall putty is relatively rough, but it has good waterproof performance.

　　5、成分和耐水性不同

　　5. Different components and water resistance

　　由于兩種膩子粉的配方不同，外墻膩子粉以白水泥為主，而內墻膩子粉則是以滑石粉、老粉為主。因此前者耐水性和硬度都比較強，哪怕遇水也不會出現軟化的現象;而后者的耐水性和強度相對外墻膩子粉就比較差，而且只要用指甲輕輕一刮就能夠刮出痕跡，遇到水也會出現軟化的現象。

　　Due to the different formulas of the two putty powders, the exterior wall putty powder is mainly made of white cement, while the interior wall putty powder is mainly made of talcum powder and old powder. Therefore, the former has strong water resistance and hardness, and will not soften even when exposed to water; The water resistance and strength of the latter are relatively poor compared to exterior wall putty powder, and as long as a nail is lightly scraped, it can leave a mark, and it will also soften when exposed to water.

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