Water is the main cause of building and paint damage, most mineral materials have porous surface, easy to absorb water, thus causing damage to the wall.
The research shows that water damage to building materials can cause the following damage :(1) cracking caused by swelling and contraction; (2) the precipitation of crystalline salt to form weathering; (3) growing mold forms a breeding ground for microbial growth; (4) easy to stain; (5) dissolved acid gas (CO2, COX) caused by rain on the chemical erosion of building materials.
The exterior wall coatings (pure silicone resin latex paint, silicone modified acrylic latex paint) with silicone resin as the main film forming material can effectively prevent moisture damage, they form a stable, high durability, three-dimensional space network structure on the surface of building materials, resist the absorption of liquid water from the outside world, but allow water vapor to pass freely. This means that outside water can be kept out of the walls, and moisture inside can escape easily. Silicone exterior wall paint is just like the leaves in nature, rainwater can not seep into the leaves, but the water on the leaves can still evaporate. (Pure silicone: IOTA 1056D, IOTA1053G, Acrylic modified silicone: IOTA 3090A, IOTA 1146)