The finish is designed to be smooth and clear to enhance the grain of the slow-growing prime Appalachian hardwood used for the new collection. Alpha A'lumina Real World Finish can be used in high-traffic areas or in homes with large and active families, Mullican says. A second-generation aluminum oxide finish, Alpha A'lumina is backed by a 25-year wear warranty. Available in a variety of colors, Mullican's Rustic Series of hardwood floors has a matte finish, while the Highland Series has a semi-gloss finish.