Sinimaka Pond Liner 16 x 20 Ft – HDPE Durable Outdoor Liner for Koi & Water Gardens

Overview

The Sinimaka Pond Liner is a 16 x 20 ft HDPE sheet designed for outdoor ponds and water features. Constructed without plasticizers, it offers a safer environment for fish and aquatic plants while delivering dependable durability through seasonal changes and daily use.

Key Benefits

• Plasticizer-free HDPE for peace of mind around aquatic life and plant roots.
• Waterproof and leak-resistant construction helps retain moisture and reduce soil intrusion.
• Flexible and easy to shape, it bends around corners and can be cut to fit irregular pond layouts.

• Good puncture and tear resistance to prevent deformation when water pressure shifts or wildlife brushes the liner.
• All-season performance: resistant to heat, cold, corrosion, and UV exposure for long-term outdoor use.
• Versatile application across koi ponds, water gardens, fountains, waterfalls, cisterns, and more—plus potential uses such as planter boxes or tarps.

Versatile Uses

Whether you’re building a koi habitat, a decorative fountain, or a backyard waterfall, this liner provides a reliable lining solution. Its broad compatibility makes it a practical option for a range of water features and even non-watering applications like protective coverings.

Installation Tips & Longevity

• For best results, lay a base layer such as old carpet or sand before installing the liner to cushion edges and extend life.
• Measure carefully and double-check size before purchase to ensure a comfortable fit for your space.
• Cut edges cleanly and avoid sharp objects during installation to minimize risk of punctures.

If you run into any issues, our team is ready to help ensure you get the most from your liner.