1. and durability The liner is made of polyethylene with a thickness of 0.2 mm It is 100 percent waterproof and UV resistant Thick and heavy duty, resistant to tearing and aging, providing a long service life 2. Impermeable design Builtin PU waterproof coating enhances waterproofing and watertight performance Suitable for ponds, reservoirs, artificial lakes and other water storage applications 3. HDPE material and safety The liner uses density polyethylene (HDPE) Resistant to aging and UV Nontoxic and environmentally friendly 4. Scope of application Widely used for garden ponds, koi ponds, selfwatering garden beds, irrigation planting boxes, water features and streams 5. Practical use scenarios Scenario 1: Lining a backyard pond or koi pond to create a reliable, watertight habitat Scenario 2: Lining selfwatering garden beds or irrigation boxes to reduce water loss and improve moisture control Scenario 3: Creating or refurbishing landscape water features such as streams and artificial lakes