The Swedish Chemicals Agency logo
The Swedish Chemicals Agency logo

Swedish regulations on usage of two-component epoxy in relining

Relining is a method used for renovating tap water pipes in a building or in the ground by covering the interior of the existing pipes with a thin layer of plastic. This layer of plastic might be an epoxy-based material or another material.


 

Ban on two-component epoxy which contains bisphenol A or bisphenol A diglycidylether

In Sweden, there is a ban on certain epoxy-based materials when renovating tap water pipes by means of use a relining. According to the ban, two-component epoxy which contains bisphenol A or bisphenol A diglycidylether must not be used when casting new plastic pipes within old tap water pipes. The ban only applies to chemical products that consist of a base and a hardener which are mixed at the place of the casting.

Chemical Products (Handling, Import and Export Prohibitions) Ordinance (1998:944), 2-2a §§. (In Swedish)

Prevent bisphenol A in tap water

Epoxy-based materials which are used when renovating tap water pipes may contain and emit bisphenol A (BPA). In this context, tap water pipes refer to pipes intended for drinking water and hot water for consumption.

Bisphenol A is a substance with endocrine disrupting properties, and also classified as toxic for reproduction. At present the recommended concentration of bisphenol A that may cause negative effects for human health is debated and it is believed that effects may occur at even much lower concentrations. To prevent that bisphenol A is emitted into tap water, a Swedish ban on usage of certain epoxy-based materials in new renovations of tap water pipes by means of use a relining, applies from the 1 September 2016.

Read more about the background of the ban in the Swedish Chemicals Agency’s report 7/13 – Avgivning av bisfenol A (BPA) vid renovering av dricksvattenrör (in Swedish).

Exemption from the ban

If there are special reasons, the Swedish Chemicals Agency may grant an exemption from the ban. We may only grant exemptions for individual cases.