EPDM Pond Liners
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EPDM Pond Liners — Rubber Pond Liner
EPDM (Ethylene Propylene Diene Monomer) rubber is the most widely used pond liner material in the industry. Its flexibility allows it to conform to any shape, it withstands UV exposure and extreme temperature swings, and it is fish-safe out of the box. Play It Koi carries EPDM liners from Firestone PondGard and Carlisle in 45-mil thickness — the industry standard for koi ponds.
EPDM Sizing & Installation
Calculate your liner size: (pond length + 2× max depth + 2 ft) × (pond width + 2× max depth + 2 ft). The extra 2 feet provides overlap for edging. EPDM stretches slightly, which helps it settle into contours. Seaming two pieces requires EPDM seam tape and primer — or order a single piece large enough to avoid seams entirely. Pro tip: let the liner sit in the sun for 30 minutes before installation. The warmth makes EPDM more pliable and easier to work into corners and shelves.
Play It Koi offers free shipping on orders over $99. Questions? Contact our pond experts for EPDM liner help.
Related Categories
RPE Liners · Box-Welded Liners · Pond Underlayment · All Pond Liners · Pond Plumbing

























