Heavy Duty HDPE Pond Liner — 0.12 mm / 5 mil Key benefits Durable protection: Made from quality HDPE, this pond liner resists tears, punctures and UV exposure so it stands up to extreme weather and longterm outdoor use. Safe for aquatic life: Environmentally stable material is safe for fish and plants, helping maintain a healthy pond ecosystem. Flexible fit: The membrane bends and folds easily to match irregular shapes. It can be cut to the exact shape required for custom ponds or repairs. Simple installation: The bottom layer provides a flat, stable surface that reduces soil intrusion. No special tools required for most installs. Protective barrier: Effectively blocks harmful substances in the soil from entering the water, making it easier to keep water clean and to maintain flora and fauna. Textured surface: Includes a layer of round cobblestone on the of the pond liners for improved appearance and slip resistance. Features and performance Material: density polyethylene (HDPE) for reliable longterm performance. Thickness: 0.12 mm / 5 mil, balancing flexibility with durability for typical garden and decorative ponds. Function: Acts as a waterproof membrane that isolates water from the surrounding soil, reduces sediment buildup, and simplifies cleaning and maintenance. Practical applications Backyard garden pond: Create a customshaped decorative pond with planting shelves or rock edges by cutting and forming the liner to fit your design. Fish or koi ponds: Use as a safe, protective barrier that helps preserve water quality and protect fish from soilborne contaminants. Pond and retrofitting: a damaged liner or reinforce an existing pond without heavy equipment; the flexible material conforms to most existing shapes. Installation tips Prepare a smooth, debris base and remove sharp stones before laying the liner. Trim to size, allow overlap at edges, and anchor with rock or edging materials. Inspect seams and edges for proper coverage; routine visual checks and simple cleaning will extend service life. This HDPE pond liner offers practical, durable protection for small to medium outdoor ponds, water features and repairs while keeping water and aquatic life safe.