Difference between latex paint for interior and exterior walls

Exterior wall paint brushes the interior wall, which is no problem from the perspective of environmental protection, but interior wall paint is not necessarily used to brush the exterior wall. Latex paint for interior and exterior walls has its own special requirements. In this paper, the differences between interior and exterior wall latex paints will be discussed in depth to help readers better understand their characteristics.

Anti-ultraviolet radiation

Exterior wall latex paint is used to paint the facade of a building. Therefore, an important indicator is anti-ultraviolet, and it should not change color after long-term irradiation. Interior wall coatings are used for indoor wall painting, and the requirements for ultraviolet resistance are far lower than those for exterior wall coatings.

Scrubbing resistance

Interior wall latex paint requires high scrubbing resistance, and it is easy to dirty the wall in home life, so it can be wiped with water at any time.

water resistant

The external wall shall be waterproof and self-washing. The paint film should be hard and flat, and the dirt will come off as soon as it is washed. The elasticity of exterior wall coatings is very important. Elasticity can prevent cracking caused by temperature and climate change.

Special purpose

Exterior wall paint can be used for interior wall painting because it also has water resistance, while interior wall paint does not have sun resistance. Therefore, it can't be used to paint external walls, so it is recommended to use it exclusively.