1、配料不同。外墙腻子粉和内墙腻子粉的主要区别就在于两者之间的配料不同，由此造成的耐水性与硬度之间的区别。内墙腻子粉主要是以双飞粉(大白粉)为主要原料，而外墙腻子粉则是以白水泥为主要原料，因此外墙腻子粉的耐水性和硬度比之内墙腻子粉来说要强上不少。

1. Different ingredients. The main difference between exterior wall putty powder and interior wall putty powder lies in the different ingredients between the two, resulting in differences in water resistance and hardness. The main raw material for interior wall putty powder is Shuangfei powder (large white powder), while the main raw material for exterior wall putty powder is white cement. Therefore, the water resistance and hardness of exterior wall putty powder are much stronger than those of interior wall putty powder.

2、性能不同。外墙腻子粉是以胶粉材料为基料配以黏结材料及其他助剂精细加工而成。其突出的特点为黏结强度高耐水性、耐碱性、施工性能好。它作为室外建筑物表面找平材料可一劳永逸。避免了开裂、起泡、粉化及脱落等现象的发生。内墙专用腻子粉具有巩固性粘接强度、环保等特色。内墙腻子比较细腻。

2. Different performance. Exterior wall putty powder is finely processed using adhesive powder material as the base material, combined with bonding materials and other additives. Its outstanding characteristics are high bonding strength, water resistance, alkali resistance, and good construction performance. It can be used as a surface leveling material for outdoor buildings once and for all. Avoiding the occurrence of cracking, foaming, pulverization, and peeling. The special putty powder for interior walls has characteristics such as consolidating adhesive strength and environmental protection. The inner wall putty is relatively delicate.

3、环保性能。在环保方面，外墙腻子粉和内墙腻子粉两者间也依然没有太大区别，环保性能基本是相同的。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。

3. Environmental performance. In terms of environmental protection, there is still not much difference between exterior wall putty powder and interior wall putty powder, and their environmental performance is basically the same. Due to its resistance to wind and sun, the exterior wall putty has high viscosity and strength, but its environmental protection index is slightly lower. On the contrary, interior wall putty is more healthy and environmentally friendly, so interior walls are not used externally and exterior walls are not used internally.

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