High-density polyethylene (HDPE), also called polyethylene high-density (PEHD), is a thermoplastic polymer made from the monomer ethylene. When used for HDPE pipes, it is sometimes called "alkathene" or "polythene." With a high strength-to-density ratio, High-density polyethylene (HDPE) is used to produce corrosion-resistant piping. In addition, HDPE is commonly recycled.

This high-performance composite material is based on High-Density Polyethylene (HDPE) reinforced with long glass fibers (LGF) through continuous pultrusion technology. It is specially engineered to overcome the mechanical limitations of traditional HDPE by significantly enhancing its strength, stiffness, and dimensional stability — while retaining the excellent chemical resistance and low density of HDPE.