Attributes . This is an economical olefin mat. It is designed as a wiper mat, retaining water and fine dust so that fewer contaminants enter the building. The vinyl backing moisture barrier helps protect floors, and the mat can hold up to 1 gallon of water per square yard. It is 3/8 inch thick and fits under most doors. The color resists fading, staining, mold, and mildew. It is ideal for use in interior areas with light traffic, such as small businesses, boutiques, or side entrances. . Names