An insulated wire comprising a polytetrafluoroethylene coating.

摘要

An insulated wire comprises a centre conductor wire having at least one covering layer thereover of ram-extruded, foamed polytetrafluoroethylene (PTFE). A non-foamed PTFE layer can be located between the wire and the foamed layer. An outer covering layer can comprise non-foamed PTFE. Preferably in the method of producing the insulated wire, the PTFE is also drawn, expanded and rendered porous.