The Petromat MPM Series is designed to reinforce asphalt overlays and prevent reflective cracking, which is caused by the movement of the underlying pavement. The fabric is made from a high-strength polypropylene or polyester material that is coated with a layer of milled polyethylene. This combination of materials creates a barrier that prevents the transfer of stress from the underlying pavement to the asphalt overlay, reducing the risk of reflective cracking.