Lining material, e.g. for pipes.

摘要

Lining material, particularly for sewer pipes, comprises felt 10 which is impregnated with UV-curable resin and has a multilayer material 12 bonded to one face to provide an abrasion resistant surface 22. The resin contains styrene which tends to escape and to cause delamination. To restrain this, the multilayer material 12 includes a barrier layer 18 (e.g. of EVOH and/or nylon), and the inner layer 14 is such that its bonding to the felt 10 is not impaired by styrene, e.g. being an ionomer such as Surlyn. Thus the material can have a long shelf life, and be easy to cure when required.