Yes, Marfil Ivory Porcelain can be used outdoors. It is a durable material that can withstand various weather conditions and is often used for outdoor applications such as patio or deck flooring, walkways, and pool decks. However, it is important to note that proper installation methods and sealing may be required to ensure the longevity of the porcelain tiles when used outdoors. Additionally, it is recommended to choose porcelain tiles specifically designed for outdoor use to ensure better resistance to moisture and slip resistance.