Pond Shield is a non-toxic epoxy liner, made in the U.S.A designed for the pond and water feature industry. It is used to construct water features or ponds with a more designer, formal or natural look than rubber liners. Using Pond Shield epoxy means no more unsightly folds or creases. In addition, unlike rubber liners, there are eight Standard colors available - Black, Clear, Competition Blue, Sky Blue, White, Gray, Tan and Forest Green and Designer Accent Colors are available in three colors - Gold, Copper and Silver. Pond Shield is used for waterproofing structured surfaces found in water features such as Koi ponds, pools, fountains, aquariums, salt water tanks, hydroponics, streams, waterfalls, reflecting pools, mini lakes, holding tanks, etc. Easily applied and easy to maintain, for most applications, a single coat application is all that is needed for proper coverage. In addition, your pond will be virtually maintenance free with a surface that algae can be easily wiped off of and is safe for fish and plants.