FORD WSS-M98D33-A13 PDF

This specification describes the requirements for a multilayered fuel vapor carrying line. The construction consists of a heat, hydrocarbon, water, and chloride resistant outer cover of high temperature polyamide and an inner barrier layer of polyethylene tetrafluoroethylene (ETFE). Though not required, the inner ETFE layer may be conductive. Adhesion of the inner layer to the outer layer is achieved by use of an appropriate tie layer.