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As the size of the tiles increases, hollowing is more and more likely to occur after laying, and even the accident of the tiles falling off occurs. This problem has a lot to do with the flexibility of the bonding material.

In order to improve the brittleness, high elastic modulus and other weaknesses of traditional cement mortar in mortar, it is usually necessary to add additives such as VAE Re-dispersible Polymer Powder. VAE copolymer rdp can give cement mortar better flexibility and resistance. Tensile bonding strength to resist and delay the occurrence of cracks in cement mortar. Since the polymer and mortar form an interpenetrating network structure, a continuous polymer film is formed in the pores, which strengthens the bonding between aggregates and blocks the mortar. There are some pores inside, so the performance of the hardened modified mortar is greatly improved compared to that of cement mortar.

External wall insulation is composed of polymer mortar, glass fiber mesh cloth, flame-retardant molded polystyrene foam board (EPS) or extruded board (XPS) and other materials, which are bonded on site