1.8 mil (0.12 mm) HDPE Pond Liner for Outdoor Ponds, Streams, Fountains and Water Gardens Benefits and purpose Prevents soil dirt from entering the pond, creating a safe environment for fish and plants Durable and flexible HDPE that is UV and ozone resistant, puncture and tear resistant, and waterproof Black color provides a discreet water feature base while delivering reliable leakage protection Key specifications and performance Thickness: 1.8 mil (0.12 mm) Material: HDPE Color: Black Application: For outdoor fish ponds, streams, fountains and water gardens How it helps your pond The black pond liner prevents soil dirt from entering the pond, helping maintain water quality Provides a dependable waterproof barrier for outdoor water features The liner underlay offers a flat surface for your garden pond, reducing soil buildup A layer of rounded pebbles on of the pond liner will extend the life of the pond Use and compatibility Suitable for outdoor ponds and water features including fish ponds, streams, fountains and water gardens Works as a liner base for projects where soil management and water containment are priorities Use scenarios Scenario 1: Backyard koi pond with a fountain Install the liner to create a durable water barrier and then with rounded pebbles to protect the liner and finish the look Scenario 2: Garden stream feature Use the liner as a base to prevent soil migration into the stream water, reducing sediment buildup Scenario 3: Multi feature water garden Lay the liner for pond sections and connected streams, with pebbles on to extend life and maintain a clean appearance Notes Size, thickness and material are specified for durable outdoor use and compatibility with ponds, streams, fountains and water gardens Designed to deliver waterproof performance while resisting UV and ozone exposure and handling punctures and tears