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Polytetrafluoroethylene (PTFE / Teflon™)

  • Polytetrafluoroethylene
    (PTFE / Teflon™)

    Polytetrafluoroethylene is commonly known as PTFE or Teflon™ and was originally introduced and trademarked by DuPont® in the late 1930s. PTFE is a fluoropolymer that has a molecular structure composed of a carbon backbone surrounded by fluorine atoms, which offers almost total chemical inertness.

    Polytetrafluoroethylene (PTFE/Teflon™) is often used in critical fluid power applications when other materials such as elastomers, polyurethanes, rubber fabric and other compounds simply cannot fulfil the requirements of certain applications. Certain types of PTFE are recognised as being suitable for use with foodstuffs and meet stringent Food and Drug Administration (FDA) requirements.

    PTFE offers exceptional performance characteristics in the following areas:

    • Superior chemical resistance
    • Excellent thermal resistance
    • Low co-efficient of friction and dry running ability
    • No explosive decompression damage
    • Unlimited shelf life

     

    Filled PTFE

    Even though PTFE has exceptional chemical and thermal resistance properties, in its unfilled or virgin form it provides limited mechanical benefits. However, the mechanical properties of virgin PTFE can be enhanced through the introduction of various fillers to the compound.

    M Seals offer a wide range of fillers to help improve the mechanical properties of virgin PTFE. These include but are not limited to:

    • Glass fibre filled PTFE
    • Carbon and Carbon Graphite filled PTFE
    • Bronze filled PTFE
    • Carbon Fibre filled PTFE
    • Mineral filled PTFE
    • Polyimide filled PTFE
    • Ekonol® filled PTFE

    Data sheet
    Temperature
    Hardness
    Description
    PTV-WD57
    Virgin PTFE    		 Min: -200°C
    Max: +260°C    		 51 Shore D A standard unfilled/virgin PTFE compound (Teflon™) that has excellent chemical resistance and low friction properties.
    PTVFQ-WD58
    Food Quality Virgin PTFE    		 Min: -200°C
    Max: +260°C    		 58 Shore D A virgin PTFE compound (Teflon™) that is suitable to be used in contact with foodstuffs.
    Approvals: FDA 21 CFR 177.1550 compliant
    PTVM-WD59
    Modified PTFE TFM    		 Min: -200°C
    Max: +260°C    		 56 – 62 Shore D A modified PTFE compound (TFM™) which has a denser polymer structure than Virgin PTFE.
    Approvals: FDA 21 CFR 177.1550 compliant
    PTC25M-GD66
    Carbon Reinforced Modified PTFE TFM    		 Min: -200°C
    Max: +260°C    		 62 – 68 Shore D A carbon reinforced modified PTFE compound (TFM™) with a denser polymer structure.
    PTG25M-WD60
    25% Glass Reinforced Modified PTFE    		 Min: -200°C
    Max: +260°C    		 60 – 65 Shore D A modified PTFE compound (TFM™) which has been reinforced via the addition of 25% glass fibre.
    PTGM-WD57-M710
    Norsok M 710 Glass Reinforced Modified PTFE TFM    		 Min: -200°C
    Max: +260°C    		 55 – 59 Shore D A Norsok M-710 approved modified PTFE compound (TFM™) which has been reinforced via the addition of glass fibre.
    Approvals: Norsok M-710 Compliant
    PTG15-WD60
    White 15 Glass Filled PTFE    		 Min: -200°C
    Max: +260°C    		 58 Shore D A modified PTFE, reinforced with a filler of 15% glass fibre by weight, which provides higher compressive strength, lower wear properties and lower creep values.
    PTG25-WD65
    White 25 Glass Filled PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D

    A reinforced PTFE with a filler of 25% glass fibre by weight, which provides higher compressive strength, lower wear properties and lower creep values.
    PTG25-WD64-M710
    Norsok M 710 White 25 Glass Filled PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D A Norsok M-710 compliant PTFE which has been reinforced with a filler of 25% glass fibre by weight.
    Approvals: Norsok M-710 Compliant
    PTG25-BLD63
    Blue 25 Glass Filled PTFE    		 Min: -200°C
    Max: +260°C    		 62 Shore D A blue pigmented PTFE which has been reinforced with a filler of 25% glass fibre by weight.
    PTG25-YD63
    Yellow 25 Glass Filled PTFE    		 Min: -200°C
    Max: +260°C    		 62 Shore D A yellow pigmented PTFE which has been reinforced with a filler of 25% glass fibre by weight
    PTGR15-GD55
    Grey Black 15 Graphite Filled PTFE    		 Min: -200°C
    Max: +260°C    		 55 Shore D A modified PTFE which has been reinforced with a filler of graphite to provide higher compressive strength, decreased wear, lower creep values and self-lubricating properties.
    PTC10-GD56
    Carbon Graphite Filled PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D A PTFE reinforced with a filler of carbon/graphite to provide higher compressive strength, lower wear and lower creep values.
    PTC10-GD56-M710
    Norsok M 710 Compliant Carbon Graphite Filled PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D A Norsok M-710 compliant PTFE which has been reinforced with a filler of Carbon/Graphite.
    Approvals: Norsok M-710 Complian
    PTC15
    Carbon Filled PTFE    		 Min: -200°C
    Max: +260°C    		 58 Shore D A PTFE which has been reinforced with a filler of carbon to provide higher compressive strength, lower wear, lower creep values and improved sliding properties.
    PTC25-GD63
    Carbon Graphite Filled PTFE    		 Min: -200°C
    Max: +260°C    		 64 Shore D A PTFE reinforced with a filler of carbon/graphite, which provides higher compressive strength, lower wear, lower creep values and improved sliding properties.
    PTC25-GD63-M710
    Norsok M 710 Compliant Carbon Graphite Filled PTFE    		 Min: -200°C
    Max: +260°C    		 64 Shore D A Norsok M-710 compliant PTFE which has been reinforced with a filler of Carbon/Graphite.
    Approvals: Norsok M-710 Compliant
    PTCF10-GD63
    Carbon Fibre Reinforced PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D

    A carbon fibre reinforced PTFE material that provides higher compressive strength, increased hardness, excellent sliding ability, lower wear and lower creep values.
    PTCF15-GD60
    Carbon Fibre Filled PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D

    A carbon fibre reinforced PTFE material that  provides higher compressive strength, increased hardness, excellent sliding ability, lower wear and lower creep values.
    PTCF1510-GD65
    Lubricated Carbon Fibre Reinforced PTFE    		 Min: -200°C
    Max: +260°C    		 63 Shore D

    A lubricated carbon fibre reinforced PTFE material that provides increased deformation resistance, higher compressive strength, increased hardness, lower wear and lower creep values.
    PTE10-CRD57
    Polymer Filled PTFE    		 Min: -200°C
    Max: +260°C    		 55 Shore D

    A proprietary polymer reinforced PTFE that has outstanding wear and temperature resistance and does not wear metallic surfaces (commonly referred to as Ekonol® filled PTFE).
    PTE25-CRD58
    Polymer Filled PTFE    		 Min: -200°C
    Max: +260°C    		 56 Shore D

    A filled proprietary polymer reinforced PTFE that has outstanding wear and temperature resistance and does not wear metallic surfaces (commonly referred to as Ekonol® filled PTFE).
    PTX72-CRD60
    Polymer Filled PTFE    		 Min: -200°C
    Max: +260°C    		 59 – 62 Shore D A polymer reinforced PTFE that has outstanding wear and temperature resistance and does not wear hardware surfaces.
    PTX84-CRD60
    Polymer Filled PTFE    		 Min: -200°C
    Max: +260°C    		 59 – 62 Shore D A polymer reinforced PTFE that has outstanding wear and temperature resistance and does not wear hardware surfaces.
    PTX1555
    Premium Proprietary Filled PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D A premium proprietary polymer reinforced PTFE that has outstanding wear, abrasion, extrusion and temperature resistance, all of which are required in high pressure / high temperature applications.
    PTB40-BRD58
    Bronze Reinforced PTFE    		 Min: -200°C
    Max: +260°C    		 58 Shore D A modified PTFE which has been reinforced with Bronze as the filler to provide higher compressive strength, increased hardness, excellent sliding ability, lower wear properties and lower creep values
    PTB40M-BRD60
    Lubricated Bronze Filled PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D A modified PTFE which has been reinforced with fillers of Bronze and MoS2.
    PTB60-BRD67
    High Bronze Reinforced PTFE    		 Min: -200°C
    Max: +260°C    		 62 Shore D A modified PTFE which has been reinforced with a high percentage of bronze as the filler.
    PTCBM-BLD56
    Turquoise Mineral Reinforced PTFE    		 Min: -200°C
    Max: +260°C    		 51 Shore D A special mineral reinforced and pigmented PTFE that helps provide increased durability when compared to standard virgin PTFE through its increased wear, and pressure resistance.
    PTGVF-GRD63
    Green Special Mineral Reinforced PTFE    		 Min: -200°C
    Max: +260°C    		 62 – 64 Shore D A special mineral reinforced PTFE that provides increased durability through its excellent wear, temperature and pressure resistance.
    Approvals: FDA Compliant
    PTGVF-TQD63
    Turquoise Special Mineral Reinforced PTFE    		 Min: -200°C
    Max: +260°C    		 62 – 64 Shore D A special mineral reinforced PTFE that provides increased durability through its excellent wear, temperature and pressure resistance.
    PTGVF-MD63
    Maroon Special Mineral Reinforced PTFE    		 Min: -200°C
    Max: +260°C    		 62 – 64 Shore D A special mineral reinforced PTFE that provides increased durability through its excellent wear, temperature and pressure resistance.
    Approvals: FDA Compliant
    PTM15-GD60
    15% Glass Moly Filled PTFE    		 Min: -200°C
    Max: +260°C    		 55 Shore D A modified PTFE which has been reinforced with fillers of glass fibre MoS2.
    FC725
    50% Modified Stainless Steel Reinforced PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D A PTFE which has been reinforced with a modified filler of 50% 316L stainless steel powder
    FC050
    Food Contact Compliant Virgin PTFE    		 Min: -200°C
    Max: +250°C    		 54 Shore D A virgin PTFE material compliance tested for food contact, potable water, sanitary and pharmaceutical applications.
    Approvals: FDA, EU 10/2011, 3A SANITARY, WRAS, USP CLASS VI
    FC815
    Mineral Filled PTFE    		 Min: -200°C
    Max: +260°C    		 55 Shore D A white FDA Compliant PTFE, reinforced with a mineral filler to provide increased compressive strength and wear resistance.
    Approvals: FDA
    FC403
    25% Carbon Filled PTFE    		 Min: -200°C
    Max: +260°C    		 60 Shore D A PTFE which has been reinforced with a filler of 25% Carbon to provide higher compressive strength, lower wear and lower creep values while improving sliding properties.


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