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The Anjon LifeGuard® 45-Mil EPDM Pond Liner is the professional-grade choice for koi ponds, water gardens, and Pond Free® waterfalls. Fish and wildlife safe, UV resistant, and designed to lay flat for easy installation — backed by an industry-leading 25-year warranty, or a lifetime warranty when used with UnderGuard® Geotextile Underlayment.
Stellar Reputation — Trusted by professionals worldwide, LifeGuard® is the preferred liner for ponds and pond-less water features. Available in a wide range of roll sizes to suit any project. Stock up for the season or order exactly what you need for your next project.
Hassle-Free Replacement — We know that damage can occur during transit. If your liner arrives compromised, simply refuse delivery and contact us. We’ll quickly ship a replacement to keep your project on schedule.
📞 Custom sizing available — please call us at 866-383-7258
Proven Performance
Fish & Wildlife Safe
Built for Professionals
Use this simple formula to determine the minimum liner dimensions you need:
The extra 2 feet accounts for overlap at the pond edges. Always round up to the next available size.
Example:
For a finished pond 12' long, 7' wide, and 3' deep, the liner size you need is:
12' + (3' × 2) + 2' = 20' Long
7' + (3' × 2) + 2' = 15' Wide
This basic formula will work for all pond shapes.
The Anjon LifeGuard® 45-Mil EPDM Pond Liner is independently tested to the following ASTM standards:
| Property | Test Method | Result |
| Specific Gravity | ASTM D792 | 1.1 gm/cc |
| Unit Weight (per sq ft) | ASTM D751 | 0.28 lbs./sq ft (1.3 kg/m²) |
| Thickness | ASTM D5199 | 1.14 mm / 0.045 in |
| Break Strength | ASTM D882 | 8.8 kN/m (50 lbs./in) |
| Break Elongation | ASTM D882 | 500% |
| Tear Resistance | ASTM D1004 | 40 N (9 lbs.) |
| Puncture Resistance | ASTM D4833 | 15,035 N (190 lbs.) |
| Resistance to Ozone | ASTM D1149 | No cracks (7 days / 100 pphm at 37.6°C / 150°F, 50% elongation) |
| Multiaxial Elongation | ASTM D5617 | 100% |
| Oven Aging 270°F / 100°C | ASTM D882 | 90% tensile strength retained; 75% elongation retained (170 hrs) |
| UV Resistance | ASTM G155 | 90% tensile strength retained; 75% elongation retained (Xenon Arc, 2,000 hrs at 80°C / 176°F) |
| Brittleness Temperature | ASTM D746 | −45°C / −49°F |
| Water Resistance | ASTM D471 | +8 / −2% (7 days at 65°C / 170°F) |
| Water Vapor Permeability | ASTM E96 | 2 per mil |
| Dimensional Stability | ASTM D1204 | 0.75% |
Use this formula: add twice the pond depth plus 2 feet to both the length and width of your pond. For example, a 10' × 15' pond that is 3' deep requires a liner at least 18' × 23'. Use the Pond Liner Size Calculator on this page to find your recommended size automatically.
Yes. The LifeGuard® 45-Mil EPDM liner is Certified Fish & Wildlife Safe by Guardian Systems, Inc. It contains no plasticizers or toxic additives, and will not leach harmful chemicals into your pond water or affect water chemistry.
The LifeGuard® liner comes with a 25-year warranty. When installed with Anjon’s UnderGuard® Geotextile Underlayment, the warranty extends to lifetime coverage.
Yes. Use Anjon EPDM Bonding Tape (3" or 6") and Anjon Primer to create a watertight field seam. These accessories are available as add-ons on this page. Always apply primer to both surfaces before taping, and allow the seam to cure for 24 hours before filling.
Pond liners ship via freight (LTL) due to their size and weight. After your order is placed, we will reach out with shipping details and estimated delivery time. For time-sensitive projects, please call us before ordering to confirm availability.
