BMP - Turf Reinforcement Mat Polypropylene (BMP- TRM P) is a long-term, permanent mat manufactured using a top and bottom black UV stabilized, heavy duty synthetic netting, filled with 100% polypropylene fiber, designed for use on steep slope and medium to heavy flow channel applications. These permanent mats are designed to reduce soil erosion and channel sedimentation through a combination of physical and biological means. The thread used to reinforce the netting is also UV stabilized polypropylene.