5540 Resat-Mat is a stitch bonded textile material composed of polyester fiber to form a strong reinforcing fabric when applied with cold roofing mastics and liquid elastomerics. Composed of 100% polyester, 5540 Resat-Mat has excellent conformability, making it ideal for replacing felts and fiberglass as reinforcing mats on rough surfaces such as embedded gravel and corrugated metal roof decks. The distinctive characteristics of 5540 Resat-Mat include high tensile strength compiled with high elongation, outstanding tear strength and toughness, high bulk and porosity, non-raveling edges and excellent dimensional stability.