Aquascape EPDM Pond & Fountain Liner 10 ft x 10 ft Black - 45 mil Fish-Safe, 20-Year Warranty

Aquascape PRO Grade 45 MIL EPDM is a fish-safe, heavy-duty pond and fountain liner engineered to retain water reliably for ponds, pondless waterfalls, and other outdoor water features.

Constructed from 45 mil EPDM (ethylene propylene diene monomer), this Aquascape liner pairs professional durability with the flexibility installers need when shaping ponds or lining complex features. The 10 ft x 10 ft sheet covers 100 square feet and is backed by a 20-year guarantee against manufacturing defects, making it a dependable choice for both hobbyists and landscape contractors. Its formulation resists UV, ozone, and oxidation to extend service life while remaining safe for fish and aquatic plants.

How does this liner hold up outdoors over time?

The Aquascape 45 MIL EPDM is designed for long-term exposure to sun, air, and water without becoming brittle or breaking down quickly. Its chemical composition delivers superior resistance to ultraviolet light, ozone, and oxidative processes that normally degrade lesser rubbers. Expect consistent performance through seasonal cycles when installed and maintained properly.

• 45 mil thickness provides robust tear and puncture resistance.
• Formulation resists UV degradation and ozone exposure.
• Flexibility allows for thermal expansion and contraction without cracking.
• Backed by a 20-year industry-leading warranty for manufacturer defects.

Is this liner safe for fish, plants, and pond ecosystems?

Yes — Aquascape specifies this EPDM as fish-safe, suitable for koi, goldfish, and other pond life when used as intended. The material is inert once cured and will not leach harmful substances into pond water under normal conditions. As with any pond installation, allow rinsing and cycling before introducing sensitive species.

• Fish-safe EPDM formulation recommended for aquaculture and ornamental ponds.
• Non-toxic once installed and rinsed; compatible with aquatic plants and filtration systems.
• Recommended to follow standard filling and conditioning steps before adding fish.
• Works with liners underlay and protective rock for further ecosystem safety.

How easy is this liner to install for DIYers or pros?

The EPDM material is notably stretchy and forgiving, which simplifies fitting around contours, ledges, and plant shelves. At 10-by-10 feet, this size suits small ponds, water features, and repair patches; larger installations can be made by seaming multiple sheets with compatible adhesives or field welding techniques used by professionals. Proper sub-base preparation and protective underlayment will speed installation and reduce the chance of punctures.

• Flexible 45 mil sheet conforms to irregular shapes and slopes.
• Manageable size for solo installers; scalable for professionals using seams.
• Pair with underlay fabric to protect from sharp rocks and roots.
• Use EPDM-compatible seam tape or professional seamers for joins.

What maintenance does the liner require to maximize lifespan?

Routine visual checks and keeping debris and sharp objects away from the liner are the primary maintenance needs. Avoid dragging heavy stones or equipment across the surface and use landscape fabric where rockwork contacts the liner. If minor punctures occur, purpose-made EPDM repair patches restore integrity quickly.

• Inspect annually for abrasion or punctures, especially after storms.
• Install protective underlay beneath gravel or rock to prevent wear.
• Repair small tears with manufacturer-recommended patch kits.
• Keep large branches and tools off the exposed liner to avoid damage.

Who this product is for: Aquascape PRO Grade 45 MIL EPDM liner is aimed at landscape professionals, pond builders, and committed DIYers who need a durable, fish-safe membrane for small to medium water features. Choose this liner if you want a proven, flexible material with strong weather resistance and a long warranty for koi ponds, backyard waterfalls, container water gardens, or repair projects where longevity and ecosystem safety matter.