We often see that there are a lot of adhesives polluting the stone outside. What is the reason for this?

The pollution and deterioration of stone sealants are generally manifested in the sealant between stone and stone when the outdoor stone is dry hung on the facade; the sealant between stone and metal curtain wall; the seal between stone and the main structure of the building such as concrete Glue pollution to stone.

In the interior, the sealant pollution and deterioration between stone and stone, stone and ceramics, stone and wood, stone and concrete are reflected. The sealant closely related to stone decoration is now the most widely used vulcanized silicone sealant. The pollution of this glue shows that the stone decoration surface is not well protected when sealing and bonding, and the sealant is glued to the stone decoration surface.

Then there is the deterioration of the sealant. The probability of deterioration of the silicone sealant is generally very small, mainly because it is relatively weather-resistant, while other sealants are relatively poor. After being exposed to wind, sun, rain, high temperature, etc., the original seal is very good Some sealants contain a small amount of low-molecular-weight substances that cannot be hardened, and they will penetrate into both sides of the stone gap, forming a pollution zone, which can be several centimeters wide. These invalid glues will also spread and stain the stone with the help of external forces, and rely on stickiness to stick to dust and plants, forming pollution on the stone wall.