Choosing paint products can not be arbitrary, because any paint products are made according to its function. Paints for exterior use as protection against sun and rain, while the paint for interior emphasizes the aesthetic aspect. So, paint the exterior obviously can not be used for the interior. But on the contrary, exterior paint can be used for the interior, but the price will be more expensive.
Interior paint can be seen from the smoothness appearance of layers of paint and color of the walls, meaning the pores of the paint is more subtle than the exterior paint. Certain types of paint already adopted the technology that enables a wall is easy to clean. One thing that is not less important to be considered in the selection of paint is the content of heavy metals such as Cadmium (Cd), Lead (Pb), Mercury (Hg) and Chromium (Cr). A good paint must not contain heavy metals that are very harmful to human health. When this has been a lot of paint products are adopting environmentally friendly technology.