• Folded black pond liner on a white background
  • Black material being stretched and cut with Aquascape branding, highlighting features.
  • Advertisement for Aquascape products featuring images of ponds, fountains, waterfalls, and streams.
  • Three people working on a large black pond liner with 'Aquascape' branding.
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Aquascape

45 mil EPDM Pond Liner - Custom Size

45 mil EPDM Pond Liner - Custom Size

$199.00 CAD
$199.00 CAD
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45 mil EPDM Pond Liner – Fish Safe Waterproof Liner for Ponds, Waterfalls & Water Features

Our 45 mil EPDM pond liner is a professional-grade waterproof membrane designed for koi ponds, garden ponds, waterfalls, and decorative water features. Made from durable EPDM rubber, this liner provides excellent flexibility, UV resistance, and long-term durability in outdoor environments.

Safe for fish and aquatic plants, EPDM liners are trusted by pond builders and landscape contractors for reliable pond construction and leak prevention.

-Fish-safe EPDM rubber
-45 mil professional thickness
-Flexible for easy installation
-UV, ozone and weather resistant
-Ideal for ponds, waterfalls, and water features

Available in multiple sizes to fit your pond project.

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Product description

45 mil EPDM Pond Liner for Ponds, Waterfalls and Water Features

Professional Grade EPDM Pond Liner

The 45 mil EPDM pond liner is one of the most reliable waterproof membranes used for pond construction, koi ponds, waterfalls, and decorative water features. Designed for durability and flexibility, EPDM rubber liners easily conform to irregular pond shapes while providing long-term waterproof protection.

This liner is fish-safe and plant-safe, making it the perfect solution for natural ecosystems, backyard ponds, and professional landscaping projects.

At AquaGarden, we supply high-quality pond liners trusted by contractors, pond builders, and homeowners across Canada.

Why Choose a 45 mil EPDM Pond Liner?

• Superior Durability – 45 mil thickness provides long-lasting protection against punctures and environmental stress.
• Extreme Flexibility – Easily conforms to curves, shelves, and complex pond shapes.
• UV & Ozone Resistant – Designed for outdoor exposure without cracking or degrading.
• Fish Safe Material – Non-toxic formulation safe for koi, fish, and aquatic plants.
• Professional Quality – Widely used by pond contractors and water feature builders.
• 20-Year Material Life Expectancy – Built for long-term pond performance.

Ideal Applications

This EPDM liner is designed for many water feature projects including:

• Koi ponds
• Backyard garden ponds
• Pondless waterfalls
• Decorative fountains
• Natural swimming ponds
• Landscape water features
• Waterfall reservoirs
• Fish ponds and aquatic ecosystems

Technical Specifications

• Material: EPDM Rubber Membrane
• Thickness: 45 mil (1.14 mm)
• Color: Black
• UV Resistant: Yes
• Fish Safe: Yes
• Flexibility: High elasticity for easy installation
• Weather Resistance: UV, ozone, and temperature resistant
• Expected lifespan: 20+ years when properly installed

How to Size Your Pond Liner

To determine the correct liner size, use the following formula:

Liner Length = Pond Length + (2 × Pond Depth) + 2 ft overlap

Liner Width = Pond Width + (2 × Pond Depth) + 2 ft overlap

Adding extra overlap ensures the liner can be securely placed around the edges of the pond.

Installation Recommendation

For best performance and longevity:

• Install a pond underlayment fabric beneath the liner to protect against rocks and roots.
• Remove sharp debris from the excavation area.
• Allow sufficient overlap around the pond edges for secure placement.
• Use proper fittings and plumbing components when connecting pumps or filtration systems.