How can I attach masonry to a wall?

To attach masonry to a wall, you can use El Pulpito.

How is it used?

1. Make sure that at least one of the surfaces to be joined is absorbent/porous (to determine whether a surface is porous/absorbent, we can pour a drop of water onto it. If it absorbs the liquid, it is a porous/absorbent surface. Otherwise, it is not). Make sure that both surfaces are firm and clean.
2. Apply EL PULPITO generously to one of the surfaces to be joined. It can be applied in dots to irregular surfaces, in waves to wide surfaces, and in lines to narrow surfaces.
3. Position the item to be attached and press firmly. Immediately remove any adhesive residue with a damp cloth.