The present invention relates to an assembly of pipe surrounded by a multilayer oxygen barrier film wherein the multilayer oxygen barrier film comprises, in the following order, a) a layer comprising 60-100 wt % of LLDPE (linear low density polyethylene) and 0-40 wt % of LDPE (low density polyethylene), b) a first tie layer, c) a polar oxygen barrier layer, d) a second tie layer and e) a layer comprising 60-100 wt % of LLDPE and 0-40 wt % of LDPE, preferably wherein the pipe is closer to the layer e) than to the layer a).