OTV Plast A/S

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Du er her: Forside / Semi-finished / Types of plastic / PTFE

PTFE

PTFE – polytetrafluorethylene (Teflon)
PTFE is known by its incredible good chemical resistance. Although PTFE has a very low friction, wear resistance and mechanical strength is limited. These qualities can be improved by adding for example fiberglass or charcoal. As semi-finished the most used manufacturing method is pressing / sintering. Besides pure PTFE in bars, hollow bars and sheets in white color, it can be delivered with an addition of glass, graphite, bronze or similar.

Application
PTFE is often used, where the need is good chemical resistance or high temperature resistance. Even longer stays in hot water or sunlight does not impair the material’s characteristics. PTFE is particularly used within the chemical industry and the electronic industry.

  • Packings
  • Seals
  • Pump parts

Qualities
Although PTFE has a low friction, it is not recommended to use the material as slide plate or bearings material, where there are too high a risk of cold flow.

Download

  • Inventory list for PTFE
  • Datasheet for PTFE

We stock PTFE in bars, hollow bars and sheets. PTFE with glass and other additives can be obtained from the plant.

PTFE + 20% glass PTFE
Density, g/cm³ 2,24 2,20
Ball pressure hardness, N/mm² 27 22
Tensile strength, MPa 11 10-25
Modules of elasticity, MPa n/a 750
Toughness, KJ/m² n/a 16
Moisture absorption 50%RF, % 0,015 >0,01
Application temperature, 0C -200/+260 -200/+260
Coefficient of expansion, 10-5/0C 8,2 – 10,7 12,5-19
Friction, µ 0,3 0,1
Acid (diluted) + +
Base + +
Solvent + +
UV-light + +

+ = useful
– = non useful

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  • Genua A/S
  • Primo A/S

CONTACT US

OTV Plast A/S
Søndergade 115 • DK-6600 Vejen
Tel. 76 97 11 00 • E-mail Sales
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OTV trades only with VAT-registered companies.
Private customers are advised to contact a DIY merchant or the like.
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