腻子粉分为外墙腻子粉和内墙腻子粉，外墙腻子粉为什么不合适用到内墙？

　　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?

　　外墙腻子要抵抗风吹日晒所以胶性大、强度高，环保指数稍低。内墙腻子综合指数较好，健康环保，所以内墙腻子粉不外用，外墙腻子粉不内用。

　　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.

　　归根结底这都是由于内墙与外墙有所区别：

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

　　1、含碱量不同

　　1. Different alkaline content

　　总的来说外墙腻子粉的含碱量要高于内墙腻子粉。

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

　　2、施工难易和价格不同

　　2. Construction difficulty and price differences

　　外墙腻子的施工难度要比内墙腻子的施工难度大的多，而通常来说外墙腻子价格要贵于内墙腻子。

　　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、环保性不同

　　3. Different environmental friendliness

　　由于外墙腻子要抵抗风吹日晒所以粘性大、强度高，但是环保指数就稍低。反之内墙腻子就比较健康环保，所以内墙不外用，外墙不内用。

　　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

　　内墙腻子比较细腻，所以主要一遇到水就会出现空鼓现象甚至脱落;而外墙腻子就比较粗糙，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

　　由于两种腻子粉的配方不同，外墙腻子粉以白水泥为主，而内墙腻子粉则是以滑石粉、老粉为主。因此前者耐水性和硬度都比较强，哪怕遇水也不会出现软化的现象;而后者的耐水性和强度相对外墙腻子粉就比较差，而且只要用指甲轻轻一刮就能够刮出痕迹，遇到水也会出现软化的现象。

　　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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