The exterior wall putty is mainly high-strength. The strength of white cement after hydration and solidification is very high. It can not even use a small hammer to knock out traces, and it will not hydrate or soften in case of water. No matter how the inner wall putty powder (big white powder) is formed, the strength after drying is very low. It can be scratched with nails, and will soften again when encountering water. When the putty for exterior wall is applied to the wall, its operability is not as good as that of the putty for interior wall, and it is not easy to polish after drying.

3、防水性能有差別

3. The waterproof performance is different

內(nèi)墻膩?zhàn)蛹?xì)膩，但遇水會(huì)鼓包脫落。外墻膩?zhàn)哟植冢浪阅芤话爿^好。外墻膩?zhàn)泳哂幸欢ǖ哪退裕慌掠辏瑢儆谟托阅佔(zhàn)樱瑑?nèi)外墻均可使用。內(nèi)墻膩?zhàn)訜o(wú)防水性能，不能用于外墻。

The inner wall putty is fine, but it will bulge and fall off in case of water. The exterior wall putty is rough, but its waterproof performance is generally good. The exterior wall putty has certain water resistance and is not afraid of rain. It belongs to oily putty and can be used for both interior and exterior walls. The interior wall putty has no waterproof performance and cannot be used for the exterior wall.

4、施工上的差別

4. Differences in construction