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Butyl Rubber Pond Liners

Butyl is sometimes used as a generic catch-all description for any high quality rubber-like liner – which can obviously cause some confusion. Genuine butyl – sometimes sold as Swedish Butyl or Varnamo Trelleborg Butyl – is a natural rubber product and has a slightly textured appearance, while the synthetic EPDM – the likes of Aqualast Rubber or Firestone Liner – is smoother and feels more elastic to the touch. Making the distinction has become a little more difficult of late, since some of the latest Greenseal EPDM liners have been made with an embossed surface to mimic the look of natural butyl. However, fortunately in practical terms, there is really very little to chose between them – both are truly excellent liner materials and can be repaired relatively easily. Butyl comes in two thicknesses – 0.75mm and 1mm, while EPDM tends to be available only as 1mm thick.