Quick answerTravertine and limestone are the softest and most porous of the common benchtop stones, so they need gentle, pH-neutral cleaning and regular sealing to slow staining. But sealing cannot stop the etching these calcareous stones suffer, so the complete answer is to seal, then protect the surface with DURAFLEX film.
Travertine and limestone bring a warm, matte, natural look to a kitchen, and they are also the most delicate stones you can put on a benchtop. This guide covers how to clean them without doing harm, how often to seal, and the honest limit that sealing runs into on these soft, reactive stones.