PTFE Index
PTFE - an acronym for Polytetrafluoroethylene - is a high molecular weight polymer, one of the most versatile plastic materials known and useful for a large range of products for applications excluded to other materials. Commonly referred to as Teflon - PTFE has extremely low coefficient of friction
Main properties of our range of PTFE sheet, rod and tube are:
- high heat resistance
- high resistance to chemical agents and solvents
- high anti adhesiveness
- high dielectric properties
- low friction coefficient
- non-toxicity.
PTFE is generally considered a thermoplastic polymer; at 327°C it maintains a very high viscosity, thus requiring particular transformation techniques for manufacturing of finished and semi-finished goods.
PTFE can be used at any temperature from -200°C to +260°C
For more detailed technical information for PTFE click here
The following grades of PTFE are available to buy online - please select from:
PTFE (Virgin Grade)
This virgin grade PTFE, and its advanced properties make it an ideal choice of material for a wide range of applications - particularly those requiring high temperature, chemical resistance and excellent slip-stick performanceAvailable colours:
White
Available to buy in:
Sheet: 0.25mm to 100mm thick Rod: 4mm to 300mm diameter Tube: various OD x ID diameters
25% Glass Filled PTFE
PTFE is reinforced with 25% glass fibres. The added glass fibre improves the wear properties and, to a minor degree, also the deformation strength under load while leaving substantially unchanged the electrical and chemical characteristics. However, it is important to remember that glass, has a rather poor resistance against alkalis and is easily attacked by hydrofluoric acid. The coefficient of friction is also slightly increased.Available colours:
Off-White
Available to buy in:
Sheet: 1.5mm to 60mm thick Rod: 6mm to 200mm diameter Tube: limited range of OD x ID diameters
25% Carbon Filled PTFE
25% carbon is added to the PTFE, along with a small percentage of graphite. The carbon tends to improve - to a considerable degree - wear and deformation strength, whilst leaving the chemical resistance practically unchanged, but substantially modifying the electrical propertiesAvailable colour: Black Available to buy in: sheet and rod
Other Filled PTFE Grades
PTFE, because of the properties previously described, is used in many applications. Properties can be improved and/or modified by adding suitable fillers. The fillers most commonly used are: glass fibre, carbon, bronze or graphite, in the form of powder intimately mixed with the PTFE; other fillers are: molybdenum bisulphide, metal powders, ceramics, metal oxides and mixtures of two or more additives.Available colour: according to filler Available to buy in: sheet, rod and tube
