Profile: Geomaster Geogrid Reinforcement Engineering Co. is a manufacturer of geogrid products. Polypropylene mesh is a thermoplastic polymer fabric used in the production of geogrids. It possesses excellent tensile strength, high chemical resistance, and good durability. The manufacturing process of polypropylene geogrids involves the extrusion of the polymer through a die, which forms a mesh-like structure. The extruded sheet is then stretched in both the longitudinal and transverse directions to orient the polymer molecules, resulting in tensile strength and stiffness. Commonly used in square hole. Fiberglass nets are composed of glass fibers embedded in a polymer matrix, typically a polyester or epoxy resin. Glass fibers are known for their high tensile strength, chemical resistance, and low thermal expansion.