Pond Liner Materials: EPDM, Butyl, HDPE, LDPE and PVC
Quick answer: EPDM and butyl are flexible synthetic rubbers that suit curved garden, koi and wildlife ponds. HDPE is a stiffer polyethylene for large, regular and commercial ponds. LDPE and PVC are lighter, lower-cost liners for smaller ponds. All five are sold in a wide range of sizes.
- EPDM: 0.75mm and 1.0mm listings
- Butyl: 0.75mm listings
- HDPE: 0.35mm, 25 and 40 year guarantee listings
- LDPE: 0.3mm to 0.35mm listings
- PVC: 0.3mm and 0.5mm listings
Last reviewed: 3 October 2026 · Reviewed by the PondLinersco.co.uk team
Start here
- EPDM pond liners
- EPDM technical reference
- Butyl pond liners
- Butyl technical reference
- HDPE pond liners
- HDPE technical reference
- LDPE pond liners
- LDPE technical reference
- PVC pond liners
- PVC technical reference
- Technical specifications database
All guides (9)
- 0.75mm vs 1.02mm Pond Liner — Is Thicker Really Better? (UK 2025) — A thicker EPDM liner gives more puncture resistance and a bigger safety margin against stones and roots; cold-weather performance is similar.
- Butyl Pond Liner Technical Data — Complete Specification Numbers UK — Butyl (isobutylene-isoprene rubber) pond liner is normally supplied at 0.75mm.
- Butyl vs EPDM Pond Liner — Which Lasts Longer? (2025 UK Comparison) — Butyl and EPDM are both synthetic rubber liners and both are suitable for fish ponds.
- EPDM Pond Liner 1.0mm vs 0.75mm UK — Which Thickness Do You Need? — 0.75mm EPDM laid over 200gsm geotextile underlay is adequate for most UK garden and wildlife ponds on prepared, stone-free soil.
- EPDM Pond Liner Temperature Range UK — Performance in Extreme Heat & Cold — EPDM stays flexible through UK winters and copes with summer heat, so temperature alone is no reason to rule it out.
- EPDM vs PVC Pond Liner UK — Full Comparison for British Garden Ponds — We favour EPDM for fish ponds and permanent ponds because it stays flexible in frost and contains no plasticisers.
- HDPE vs LDPE Pond Liner UK — What's the Difference? — HDPE and LDPE are both polyethylene: HDPE is denser, stiffer and stronger, while LDPE is softer and easier to fold into curves.
- LDPE Pond Liner UK — Complete Buyer's Guide 2025 — LDPE is a lightweight, flexible polyethylene liner and a budget choice for straightforward ponds such as wildlife ponds, bog gardens, flat-bottomed raised ponds and temporary features.
- Polyex Pond Liner vs HDPE UK — The Technical Comparison Professionals Use — Our Polyex liner is a reversible black/brown sheet with a lifetime guarantee, while our HDPE liners are 0.35mm with 25 or 40-year guarantees.
Other topic hubs
- How to Choose a Pond Liner
- Pond Liner Sizing
- Pond Liner Installation
- Pond Liner Underlay
- Pond Liner Repair and Leaks
- Koi and Wildlife Pond Liners
- Commercial and Large Pond Lining
Need help choosing? Contact our team or see the pond liner hub.