What glue should I use for tiling? It is said that it is popular to stick tiles on the back with glue now.

Porcelain tile binder, also known as tile binder or adhesive, viscose mud and other names, is a new material for modern decoration, replacing the traditional cement sand. Adhesion is several times that of cement mortar, which can effectively paste large tiles and stones and avoid the risk of brick falling. Good elasticity to prevent hollowing in production. It is mainly used for pasting decorative materials such as tiles, tiles and floor tiles, and is widely used in decorative places of buildings such as interior and exterior walls, floors, bathrooms and kitchens. Its main features are high bonding strength, water resistance, freeze-thaw resistance, good aging resistance and convenient construction. It is an ideal bonding material. ?