Travertine is a beautiful natural stone, but like other natural stones, it is porous and requires the right care to maintain its appearance and performance. One of the most common questions homeowners ask after installing or restoring a travertine floor is: Should I use a penetrating sealer or a coating to protect my travertine? The answer depends on several factors, including the condition of the stone, the type of travertine, whether the floor is indoors or outdoors, the am