Savana Travertine is a natural stone with a beige background marked by accents of gray and dark brown. Thanks to the mixture of neutral colors in every tile, the contrast between the delicate background and the dramatic veining give character and personality to the stone.
Castelli puts a Resin backing on some of their stones to reinforce/strengthen it during processing, shipping, and install.
This Resin backing requires the use of an Epoxy Thinset or Epoxy Additive during installation
Common stones that will have this are Nero St. Gabriel, Rosewood, Calacatta, Statuary, etc.