There are actually many types of sofa sponges, and different sponges are used in different positions. Today, the editor will take you to understand the difference between outdoor furniture sponge and indoor furniture sponge. Outdoor sofa sponges are very different from indoor sofa sponges in terms of materials. The first material is different, the second density is different, and the third process is different. Generally speaking, the foam sponge of indoor furniture is softer and has a small pore size, which will absorb water (the inside of the sponge hides water and is easy to mold); while the quick-drying cotton of outdoor furniture is a little harder, with a large pore size, which will permeate water (the sponge does not store water). , most of the water will be leaked directly, and the sunlight will evaporate the residual water vapor).