What's the Difference Between the Exterior Wall and the Interior Wall?

Environmental protection coatings are also divided into exterior wall coatings and interior wall coatings. Some people will ask whether interior and exterior wall coatings can be used in general? The first step is to understand the standard requirements of interior and exterior wall coatings.

1、 Environmental protection requirements
Although both interior wall coatings and exterior wall coatings have high standards for environmental protection, and all of them are non-toxic for environmental protection, the corresponding interior wall coatings pay more attention to environmental protection because people live indoors for a long time, but it is not that exterior wall coatings are not environmentally friendly, but the focus is different.
2、 UV light resistance requirements
Because the exterior wall coating is often exposed to the sun, it is required that the exterior wall coating has high requirements of anti ultraviolet radiation, which can withstand the ultraviolet light for a long time without decolorization. Because the wall of interior wall coating is seldom exposed to ultraviolet light, the standard of resisting ultraviolet light is not as high as that of exterior wall coating.
3、 Wipe resistance
Interior wall coating is in the indoor, often need to be scrubbed, which requires interior wall coating to have excellent scrubbing resistance, can withstand repeated scrubbing without discoloration, does not affect the performance. And the standard of external wall coating is not as high as that of internal wall coating.
4、 Weatherability
The natural environment standard of the exterior wall coating can deal with the wind and sun, without decolorization and peeling, and has excellent decoration. The interior wall is not as strict as the exterior wall coating, but there are certain standards.

Generally speaking, the focus of exterior wall coating is different from that of interior wall coating. Generally speaking, interior wall coating can not be used for exterior wall, but some exterior wall coatings can be used for interior wall, and some can not. The construction shall be carried out according to the manufacturer's construction instructions.