Black HDPE geomembrane is a mainstream color among geomembranes. This is not just a simple color, but more importantly, it represents the performance advantages that the geomembrane offers, or in other words, one of the manifestations of geomembrane performance is its black color. The black HDPE geomembrane is made from HDPE material, which has a relatively high density and a high degree of crystallinity. Therefore, the antioxidant capacity of black HDPE geomembrane is quite remarkable. Unadditized geomembranes are very susceptible to aging due to temperature and light exposure. Long-term research has shown that the addition of additives can enhance the service life of HDPE geomembranes. It is precisely because of this property that black HDPE geomembrane is widely used.