Polytetrafluoroethylene (PTFE / Teflon™)

Polytetrafluoroethylene is commonly known as PTFE or Teflon® and was originally introduced and trademarked by DuPont® in the late 1930’s. 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

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.

DMR 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 as well as many others, including some proprietary compounds.

Place your mouse pointer over the material part numbers shown below to see more information about each compound, or contact our technical team for more information and help choosing the right compound for your application.

Material Range

Data Sheet

Temperature

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +250°C

Min: -200°C
Max: +260°C

Min: -200°C
Max: +260°C

Hardness

51 Shore D

58 Shore D

56 – 62 Shore D

62 – 68 Shore D

60 – 65 Shore D

55 – 59 Shore D

58 Shore D

60 Shore D

60 Shore D

62 Shore D

62 Shore D

55 Shore D

60 Shore D

60 Shore D

58 Shore D

64 Shore D

64 Shore D

60 Shore D

60 Shore D

63 Shore D

55 Shore D

56 Shore D

59 – 62 Shore D

59 – 62 Shore D

60 Shore D

58 Shore D

60 Shore D

62 Shore D

51 Shore D

62 – 64 Shore D

62 – 64 Shore D

62 – 64 Shore D

55 Shore D

60 Shore D

54 Shore D

55 Shore D

60 Shore D

Description

A standard unfilled/virgin PTFE compound (Teflon™) that has excellent chemical resistance and low friction properties.

A virgin PTFE compound (Teflon™) that is suitable to be used in contact with foodstuffs.
Approvals: FDA 21 CFR 177.1550 compliant

A modified PTFE compound (TFM™) which has a denser polymer structure than Virgin PTFE.
Approvals: FDA 21 CFR 177.1550 compliant

A carbon reinforced modified PTFE compound (TFM™) with a denser polymer structure.

A modified PTFE compound (TFM™) which has been reinforced via the addition of 25% glass fibre.

A Norsok M-710 approved modified PTFE compound (TFM™) which has been reinforced via the addition of glass fibre.
Approvals: Norsok M-710 Compliant

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.

A reinforced PTFE with a filler of 25% glass fibre by weight, which provides higher compressive strength, lower wear properties and lower creep values.

A Norsok M-710 compliant PTFE which has been reinforced with a filler of 25% glass fibre by weight.
Approvals: Norsok M-710 Compliant

A blue pigmented PTFE which has been reinforced with a filler of 25% glass fibre by weight.

A yellow pigmented PTFE which has been reinforced with a filler of 25% glass fibre by weight.

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.

A PTFE reinforced with a filler of carbon/graphite to provide higher compressive strength, lower wear and lower creep values.

A Norsok M-710 compliant PTFE which has been reinforced with a filler of Carbon/Graphite.
Approvals: Norsok M-710 Compliant

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.

A PTFE reinforced with a filler of carbon/graphite, which provides higher compressive strength, lower wear, lower creep values and improved sliding properties.

A Norsok M-710 compliant PTFE which has been reinforced with a filler of Carbon/Graphite.
Approvals: Norsok M-710 Compliant

A carbon fibre reinforced PTFE material that provides higher compressive strength, increased hardness, excellent sliding ability, lower wear and lower creep values.

A carbon fibre reinforced PTFE material that  provides higher compressive strength, increased hardness, excellent sliding ability, lower wear and lower creep values.

A lubricated carbon fibre reinforced PTFE material that provides increased deformation resistance, higher compressive strength, increased hardness, lower wear and lower creep values.

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).

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).

A polymer reinforced PTFE that has outstanding wear and temperature resistance and does not wear hardware surfaces.

A polymer reinforced PTFE that has outstanding wear and temperature resistance and does not wear hardware surfaces.

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.

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.

A modified PTFE which has been reinforced with fillers of Bronze and MoS2.

A modified PTFE which has been reinforced with a high percentage of bronze as the filler.

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.

A special mineral reinforced PTFE that provides increased durability through its excellent wear, temperature and pressure resistance.
Approvals: FDA Compliant

A special mineral reinforced PTFE that provides increased durability through its excellent wear, temperature and pressure resistance.

A special mineral reinforced PTFE that provides increased durability through its excellent wear, temperature and pressure resistance.
Approvals: FDA Compliant

A modified PTFE which has been reinforced with fillers of glass fibre MoS2.

A PTFE which has been reinforced with a modified filler of 50% 316L stainless steel powder.

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

A white FDA Compliant PTFE, reinforced with a mineral filler to provide increased compressive strength and wear resistance.
Approvals: FDA

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.

H
I