Teflon is a material with built-in stability. Therefore it possesses special qualities that apply in many different situations.

• Auto lubrication: even under friction it does not release any heat and as such static electricity is practically absent.
• Excellent electric insulation: commensurate with its diameter it can support increasingly high tensions.
• Insoluble and resistant to the various solvents and acids: except for fluorocarbon oil at a very high temperatures, ammonia and calcium fluoride.
• Supple: it is not very sensitive to extreme temperatures and it extracts and contracts little
• It has a rather pleasant milky white appearance.

Dupont of Nemours were the first to assign the name Teflon® to Polytetrafluorethylene (PTFE).
Since that time other manufacturers have made many more materials and those are known under different names:

Hostaflon® by Hoechst
Algoflon® by Ausimont
Fluon® by Imperial Chemical Industry

The main problem using PTFE is due to its high point of fusion. Many derivatives have been developed with inferior qualities and a lowered fusion point. This makes them simpler to use (FEP) and still allows the manufacturer to call them Teflon.

We use PTFE as a dielectric for the following reasons :

• Its insensitivity to static loads, thus avoiding the memory effect.
• Its strong mechanical qualities that assures a firm placement of the strands in between the Teflon.
• It follows that conductors insulated with PTFE are particularly suited to the transmission of weak signals because of their quietness and perfect respect for keeping signals in phase due to the absence of the memory effect.

For the creation of one simple isolated PTFE cable no less than 7 consecutive operations are necessary:

• Washing: The copper wire is passed through a soda bath
• Rinsing: The wire is rinsed with clear water to get rid of all the traces of soda.
• Electrolysis: The wire is pulled through an electrolytic bath where it receives the silver coating that supports the PTFE layer.
• Wiring: By routing it through a set of sharp curves formed by wheels with increasing distance to each other, the wire is next stretched to obtain its final diameter.
• Stranding: The strands are assembled in such a way as to properly pad the wire.
• Extrusion: Before it receives the PTFE layer the assembled wire is passed through the extrusion head assembly. In this stage the PTFE comes in the form of a paste of PTFE powder and petrol.
• Heating: Immediately after extrusion, the wire coating paste returns to a vertical oven consisting of a small tube with a total length of approximately 30M. It will attain the temperature of 350° at the PTFE powder, separated from its evaporated gasoline, has to amalgamate itself and form the Teflon that we will use.