1, Building components in the surface of the bonding preparation, but also often with oil, mould releasing agent, weathering layer, carbonised layer, rust layer, these unclean, not solid surface layer, not strong surface layer if not clear processing, will greatly affect the performance of adhesive bonding.

　　2, The roughness of the surface of the object to be adhered to deal with, can increase the actual bonding area of the bonded parts, such as sandblasting can make the polished metal surface to increase the bonding area of 20 times; in addition, the rough surface can make the cured adhesive and the bonded material to form more meshing structure-- mechanical bonding force and improve the bonding strength. This has been confirmed by theory and practical experience.

　　3, Surface treatment can also improve the performance of the surface. Such as chemical treatment of metal surfaces, can provide the surface tension of the adhesive surface, thus improving the bond strength. Some difficult to stick to the low-energy surface material and rubber by surface treatment in order to carry out effective bonding (such as sodium - naphthalene liquid treatment of polytetrafluoroethylene), the above mentioned coupling agent on the surface treatment can also improve the performance of bonding, so the surface treatment in the building bonding process is very important.