PTFE
Virgin PTFE
(Teflon®) is a white, waxy feeling industrial plastic and has almost universal
chemical resistance. It has useful electrical and mechanical properties. PTFE
can be moulded into solid rods, tubes and sheets for machining into finished
components. Teflon® has excellent non stick properties, it has a surface to
which no substance will adhere. It also has excellent UV resistance. As well as
having the lowest coefficient of friction of any solid (0.05-0.08), PTFE has a
very high upper temperature limit of 260°C. PTFE in its virgin form can be
easily deformed by high loads and compressive forces. To minimise this,
additives such as glass (usually creamy colour), Bronze (usually brown colour),
Carbon (black colour) are added prior to moulding. PTFE can also be chemically
etched on one surface to allow bonding to steel surfaces. Trent Plastics
(Fabrications) Ltd can supply PTFE in Virgin, filled grade in Sheet, Rod and
Tube form, as well as a full machining service.