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Filled PTFE

Filled PTFE

High quality materials for applications under extreme conditions


ptfe cargado-01

Filled PTFE

PTFE (Polytetrafluoroethylene) is a high-temperature resistant polymer which is considered one of the most versatile among the thermoplastic materials. Besides being a nontoxic material, it also has an excellent resistance to high temperatures, chemicals and solvents. Its anti-stickiness, low coefficient of friction, as well as dielectric properties are also some of its features.

Having the lowest coefficient of friction to solids, a great resistance to chemicals and extreme temperatures and due to its non-stick properties, PTFE offers several uses for all kinds of industries; especially for the paper, chemical, oil, electrical, nuclear, metal and pharmaceutical ones.

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TETRAFLON® provides the following options:

  • Fiberglass
  • Carbon
  • Graphite
  • Molybdenum disulfide
  • Bronze
  • Stainless steeL

WE MENTION SOME OF THE FILLERS WE CURRENTLY HAVE IN OUR PRODUCTION LINE, BUT WE CAN PRODUCE PARTS WITH THE PTFE FILLER THAT THE CUSTOMER REQUIRES.

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FIBERGLASS FILLED PTFE

The main features of fiberglass are:

  • It improves the resistance to compression and wear.
  • It improves PTFE resistance to friction in high and low temperature.
  • Excellent chemical stability. (With the exception of strong alkalis and hydrofluoric acid)
  • When combined with Molybdenum disulfide or Graphite, thermal conductivity improves.
  • It has excellent electrical properties.
  • Good balance in Electrical, Mechanical and Chemical properties.

 MAIN APPLICATIONS:

It is the most common load for seals with rotating and alternating movements. (Pneumatic use, hydraulic use, bearing, piston rings, valve seats and mechanical parts).

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CARBON FILLED PTFE

The main features of Carbon are:

  • Excellent compression performance and wear resistance.
  • Good thermal conductivity
  • Low permeability.
  • Due to its carbon content, it becomes antistatic.
  • Good performance in damp conditions.
  • It is one of the most inert loads with the exception of acidic conditions, where fiberglass performs better.

MAIN APPLICATIONS:

It is thoroughly used in seals that require a high-pressure resistance to ware. (Piston Rings for unlubricated compressors and bearing).

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GRAPHITE FILLED PTFE

The main features of graphite are:

  • Good thermal conductivity.
  • Low coefficient of friction and low permeability.
  • Excellent wear resistance properties, especially to soft metals.

MAIN APPLICATIONS:

Used in dynamic seals where self-lubrication is important. (Shock absorber joints)

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MOLYBDENUM DISULFIDE FILLED PTFE

Its main features are:

  • Low coefficient of friction (static).
  • Good thermal conductivity
  • Wearing resistance
  • Low impact on its electrical characteristics.
  • Low reaction on chemicals.
  • Good elasticity.

MAIN APPLICATIONS:

Used in seals where self-lubrication is important. It is usually combined with Fiberglass or Bronze. (Bearings, Seal Rings and Piston Rings).

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BRONZE FILLED PTFE

Bronze main features are:

  • Excellent wearing and compression resistance to heavy loads and low speeds.
  • Good thermal conductivity.
  • When combined with Molybdenum disulfide or Graphite, it provides a good coefficient of friction.
  • It is not good for electrical applications.
  • It is not ideal to work with chemicals such as chlorine and some acids since it could be attacked.

MAIN APPLICATIONS:

Dynamic seals where high-wearing-compression resistance is required but chemical resistance is not important. (Compression rings, bearings and hydraulic systems)

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STAINLESS STEEL FILLED PTFE

Its main features are:

  • It improves compression resistance.
  • Low permeability.

MAIN APPLICATIONS:

It has a good performance when high compression and chemical resistance are needed. It works well for dynamic applications. (Seals and bearings for specific food industry machines)