Pond HDPE Sheets designed by us, have excellent UV resistance and can withstand frigid temperatures. These sheets are often used in landfills and chemical storage facilities, but they are also suitable for fish ponds. They are extremely durable, lasting up to 36 years when covered, regardless of where they are used. It is ideal for ponds with steep or mild slope sides, tight corners, curves, and shelving of all sizes. Attaches to waterfall boxes, weirs, and skimmers with ease. Even in extreme hot or cold temperatures, it remains flexible and elastic.