Polyester filament geotextile is manufactured through processes such as spinning polyester chips into a web and needle-punching consolidation. It boasts excellent mechanical properties, high permeability, corrosion resistance, and anti-aging characteristics. The material performs multiple functions including isolation, filtration, drainage, protection, stabilization, and reinforcement. It adapts well to uneven substrates, resists damage during construction, and exhibits low creep, maintaining its functionality under long-term loads.

Widely used in hydraulic engineering for filtration in dams and slope protection, as well as isolation and anti-seepage in channels. It also serves for base isolation, filtration, and drainage in highways, railways, and airport runways, reinforcement and drainage in slopes, retaining walls, and pavements. Additionally, it is applied in soft ground treatment for port engineering, beach embankments, harbor docks, breakwater reinforcement, and drainage.