Armorform® Fabric Formed Concrete Revetment systems provide outstanding performance in erosion control, scour protection, and lining applications. Utilizing double layer woven geotextiles, Armorform® is used exclusively to serve as forms for casting high strength concrete into our primary styles of uniform section mat (USM), filter point mat (FPM) and articulating block mats (ABM). Woven from polyester yarns, Armorform® is designed with the required mechanical and hydraulic properties of a superior textile formwork.