AGC have developed a unique,modified, ETFE (ethylene tetrafluoroethylene)polymer that can be co-extruded and chemically bonded to amine-terminated PA-12 or other PA types. The ETFE provides the barrier layer to fuel evaporation and also chemical resistance to agresive fuels inside the fuel hose whilst the PA-12 provides the impact/mechanical properties.
This unique 2 layer fuel hose system is replacing current 4-5 layer systems. - no extra tie layer or barrier layer is needed , the system is also lighter in weight so lower potential emmisions. This new SunbestaTM fuel hose system meets current Eu and US evaporative emission requirements. AGC has also been working to develop the next generation system to meet the next LEV and Euro emission standards.