Barrier and level: Pond liners act as a barrier between the soil and the pond water, helping to create a level water surface, reducing soil buildup, and preventing pond leaks. Water quality protection: They prevent pollutants from the soil from entering the pond, reduce the risk of water contamination, and support a safe, healthy environment for the plants and animals in the pond. Material and durability: Made of quality HDPE, the liner is flexible and UV resistant. It remains durable under direct sunlight and is designed for longterm use. Color and versatility: Black pond liners are suitable for outdoor ponds, koi ponds, waterfalls, and other water features. They are also widely used in construction, agriculture, paving, and surface protection. Use scenario: Residential koi garden pond install the liner to contain water, maintain a level surface, and protect against leaks and soil intrusion while supporting healthy aquatic life. Use scenario: Outdoor water features use the liner for koi ponds, waterfalls, and similar features to contain water and protect water quality in landscape installations. Use scenario: Construction and surface protection apply the liner in construction, agricultural projects, paving, and surface protection to manage soil movement and protect underlying surfaces.