Water pipes – 11 year test

Citation

(2004), "Water pipes – 11 year test", Anti-Corrosion Methods and Materials, Vol. 51 No. 5. https://doi.org/10.1108/acmm.2004.12851ead.005

Water pipes – 11 year test

Water pipes – 11 year test

Keywords: Thermoplastics, Pipes, Corrosion

A long-term field test monitored by the Swedish Corrosion Institute has resulted in remarkable findings for functionalised polyolefin alloys such as PPA 571.

After 11 years of being buried in the salty clay soils around Gothenburg six water pipes coated with thermoplastic polyolefin alloys were dug up for examination and were found to be in outstanding condition.

The pipes showed absolutely no rusting, cracking or flaking. In fact all of the test pieces were deliberately damaged before they were laid and the spread of these defects such as scratching, holes and blow marks were also found to be nil.

The Swedish Corrosion Institute has indicated that water pipes in similar conditions, coated with Plascoat PPA 571 would have a lifetime of over 200 years.

PPA 571 has been used for water pipes all over the world from snow making in Switzerland to the seaport in the US city of Seattle. It has a wide range of water approvals including NSF61 and conforms to the requirements of FDA food contact.

PPA 571 is available for both fluidised bed and electrostatic spraying.

For more information, contact: Plascoat Systems Limited, Trading Estate, Farnham, Surrey, GU9 9NY, UK. Tel: +44 (0) 1252 733777; Fax: +44 (0) 1252 721250; E-mail: sales@plascoat.com