PTFE Labware

We primarily machine these from virgin grade PTFE and Modified PTFE to suit applications requiring chemical resistance, high purity and the ability to handle a broad operating temperature range.

Fluoropolymer Lab Supplies features

(Polytetrafluoroethylene Plastic) is a good choice for labware because of its resistance to corrosive elements that many other plastics are unable to stand up to.

Chemical Resistance

The chemical resistance of PTFE is almost total over its working temperature range. Reaction is limited to some compounds with free electrons such as sodium in liquid ammonia and some fluorine compounds at high temperature and pressure. Halogens will penetrate PTFE but without apparent reaction.

Thermal Stability

The thermal stability of PTFE is outstanding. The material can be used to ca. 280˚C yet there is no embrittlement in liquid helium. Thermal degradation does not commence until about 400˚C. PTFE does not melt to form a liquid phase.

Insolubility & Purity

The PTFE we use conforms to USP Class VI and FDA requirements and is intrinsically pure and contains no additives. PTFE is insoluble in all known solvents except under extremes of pressure and temperature and will not contaminate media by dissolution.

Electrical Insulation

Fluoropolymers have excellent electrical insulation properties, which are suitable for use in electrical and electronic experiments where insulation is required

Labware Materials Selections

Material NameCompound %Main PropertiesColor
PTFE/Very low coefficient of friction and excellent chemical resistance.

 

FDA approved.

White
Glass Filled PTFEUp to 40%Improved ware resistance, compression strength, creep resistance, chemical resistance. Good performance in oxidising environment, good creep resistance.White cream
Carbon Filled PTFEUp to 35%Improved electrical and termal conductivity, resistance to load, low coefficient of friction in dry, water, steam applications, chemical resistance. Superior ware resistance increase and low friction properties.Black
Graphite Filled PTFEUp to 25%Improve wear resistance, decrease friction and increase sliding properties against soft metals- chemical inertness. Improve the temperature resistance in some way.Black
Bronze Filled PTFEUp to 60%Improved compression strength, wear resistant, high thermal conductivity, resistance to abrasion. Reduced chemical resistance.Dark Brown
Molybdenum disulphide(MoS2) Filled PTFEup to 5%Increased PTFE properties of hardness and wear resistance. Increased sliding properties and decrease friction.Blue azure
PEEK Filled PTFEUp to 20%Increased thermal resistance, sliding properties, surface hardness. Superior properties on dynamic applications.Light Brown
PEEK/Excellent mechanical properties including strength, rigidity, impact resistance, low wear rate and low coefficient of friction, retained over a wide range of service temperatures.Light Brown
PEEK compound/Improves technical and chemical properties like deformation under load, wear resistance, thermal expansion and electrical conductivity./
PVDF/Resistant to UV radiation and offers high mechanical strength and abrasion resistance.Beige
PCTFE/Better mechanical properties than other fluoropolymers, low permeability.Translucent
PFA/Excellent chemical and temperature resistance, electrical insulation and excellent processabilityNatural

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