LLDPE pond liner helps prevent leaks and protects fish and plants by creating a durable, waterproof barrier for ponds, waterfalls, and water gardens. Made from flexible black LLDPE with high tensile strength, this 20 mil (0.5 mm) liner bends easily around curves and irregular edges, then stays tough against weather, impacts, and punctures. Trim to fit custom shapes for backyard projects, aquaculture setups, and landscaping features.

Build or refresh a pond with a liner that’s made for real outdoor use—strong enough for demanding conditions, yet pliable enough for fast installation. For easier shaping, warm the sheet in direct sun for 10–15 minutes before laying it into place. Use it for backyard fish ponds, water gardens, small artificial lakes, aquaculture farms, golf-course features, or rooftop water projects. Grab yours today and cut it to the exact footprint your design needs.