The unique construction of tape wrapped convoluted hose combines the properties of PTFE with lighter weight and greater flexibility than any hose of comparable size.   As with medium pressure smooth bore, tape wrapped convoluted is manufactured with a conductive or non-conductive inner core depending on the demands of the application.   Some applications require a conductive inner liner to dissipate static electrical charges.   High resistivity fluids or gasses at high velocity cause positive electrical charges to build on the inside of the PTFE liner.   If not dissipated to the end of the hose, the charge will build until it arcs through the tube wall to the braid, causing catastrophic hose failure.   To alleviate this, a PTFE inner core is manufactured with a thin conductive liner on the I.D.