To protect stone floors, walls and counters, we recommend using a penetrating sealer such as MP90/MP90 Eco Plus. Care must be taken to avoid cleaning natural stone with harsh or abrasive cleaners, especially those that contain phosphoric ACID or glycolic acids. Be aware that acidic materials such as vinegar, and lemon juice can etch some stone surfaces such as some of the softer limestones. For maintenance, we recommend FilaCleaner for our tumbled stones and MOSAICS and brushed and honed products. Occasional deep cleaning may be required to restore and maintain the stone’s natural PATINA. Please consult with our sales staff for recommendations.