The expanded clay of DCM is a special substrate that promotes good drainage, as well as good aeration and root development.

It can be placed on the soil surface to prevent weed growth and also has decorative use.
It is produced from high-quality clay and is completely free from harmful salts.

During its production, high temperatures are developed, resulting in all the formed "hydro-grains" becoming inert and ideal for use in the cultivation of all plants.