Omnia Plastica PTFE Polytetrafluoroethylene

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Omnia Plastica PTFE Polytetrafluoroethylene
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Molded
Material Notes:	A Fluoropolymer used mainly for its excellent chemical resistance. It has poor mechanical features. The strain, even under low weight, makes it very suitable as a gasket material. Features: Chemical: a typical fluoropolymer with very high chemical resistance. Mechanical: the mechanical features such as tensile stress and compressive strength are poor. Notably the bearing strain is very low. Very good resistance to low and high temperatures up to 260° C. as well as to UV rays. Low flammability Low friction coefficient Colour: natural Weak Point: Poor mechanical properties. The strain is very high, even simply under the weight of the piece. Application: Chemical: very high chemical resistance to alkali and acids is the main feature of the fluoropolymers. PTFE is used for parts in the petrochemical and chemical industries. Food contact: physiologically inert it is approved for use in contact with food by some standards, whilst in some countries this use is questioned. Electrical: very good dielectric, self-extinguishing and weather stability properties make it suitable for this field. Mechanical: the low friction coefficient makes it suitable for bearings, provided that they work under low charge. Information provided by Omnia Plastica s.p.a. for semifinished products such as sheet, rod, and tube.
Vendors:

Available Properties

Density, ISO.1183 DIN.53479
Moisture Absorption at Equilibrium, 50% relative humidity
Water Absorption at Saturation, 23°C
Hardness, Shore D, ISO2039.2, dry sample
Ball Indentation Hardness, ISO2039.1 DIN.53456
Tensile Strength at Break, ISO.527 DIN.53455
Elongation at Break, ISO.527 DIN.53455
Tensile Modulus, ISO.527 DIN.53455
Compressive Strength, ISO.899 DIN.53444, 1% strain over 1000 hours
Charpy Impact Unnotched, ISO.R179 DIN.53453, 7.5 J
Charpy Impact, Notched, ISO179/3C DIN.53453
Coefficient of Friction, Dynamic, on dry ground steel; load =0.05MPa; speed =0.6 m/s
Volume Resistivity, ISO.93 DIN.53482
Dielectric Constant, ISO.250 DIN.53483
Dielectric Strength, ISO.243 DIN.53481
Dissipation Factor, ISO.250 DIN.53483
CTE, linear
Thermal Conductivity, DIN.52612
Melting Point
Maximum Service Temperature, Air, Continuous; 5000 hours based on a tensile stress of 50% at 23° C.
Maximum Service Temperature, Air, short period, no load
Deflection Temperature at 1.8 MPa (264 psi), ISO.75 DIN.53461
Minimum Service Temperature, Air, impact conditions and heavy loads not considered
Flammability, UL94
Oxygen Index, ISO.4589

Property Data

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Manufacturer Notes:
Omnia Plastica s.p.a.

Category Notes
Plastic

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