A peculiarity of being able to design the density of the piece is that we can decide when and where the water moistens the surface, retaining it in the pore until it inevitably evaporates in contact with the air.

Acoustic protection tiles or as swimming pool lining. Matter color without added pigment.
Reproduction of old designs for restoration and contemporary designs.
In the image, a 7 x 7 x 1 cm tile made with waste from the manufacture of jeans with a brass ring center filled with earth. Anti-acoustic properties.
More info (on course).