- Data Sheet: F1-19
15% Carbon (85% Virgin PTFE + 15% Carbon)
PTFE Carbon Compound preferred for parts and components requiring very good mechanical properties.
This material offers an excellent combination of properties Typical of the PTFE fluoropolymer resins:
• Service Temperature: offers excellent resistance to continuous service temperatures – working conditions from -100° C (-148°F) up to 250°C (482°F) and, for limited periods, even to higher temperatures; product’s
low temperature resistance allows satisfactory performance down to –200°C (-328°F).
• Chemical resistance: offers high inertness towards nearly all known chemicals. Only attacked elemental alkaline metals, chlorine trifluoride and elemental fluorine at high temperature and pressures might affect properties.
• Solvents resistance: offers insoluble properties in all solvents up to temperatures as high as 300° C (572° F).
Certain highly fluorinated oils only swell and dissolve PTFE at temperatures close to the crystalline melting point. Carbon Compound enhances some characteristics of virgin PTFE such as wear and compression strength, deformation under load, cold creep, thermal conductivity and dimensional stability.
Properties
• Improved thermal dimensional stability
• Excellent chemical stability
• Improved creep resistance
• Good thermal and electrical conductivity
• Improved compression strength
• Good cold flow reduction
• Excellent wear resistance
• Excellent resistance to abrasion
• Exceptional temperature resistance
• Improved surface hardness
Main applications
PTFE Carbon Compound offers excellent properties in the chemical processing, in automotive industries, in sealing application, in water application (one of the lowest wear rates in fresh water) and in mechanical applications, in general for bushing, sliding pads, and for slide ways for machine tools. High wear resistance, abrasion resistance and good wear compression properties are suitable for the majority of dry bearing applications against hard countersur faces..
PTFE Carbon Compound is widely used in seal applications where high wear resistance is required under high compression, e.g., piston tings for dry compressor, bearings, grooved mechanical support.
PTFE Carbon Compound is recommended for dry and poorly lubricated applications, suitable in water and steam service, also when a fast dissipation of electric charge is needed.
FDA Approved US Regulation
• Code of Federal regulation 21 CFR Ch.1; section 177.1550 Perfluorocarbon Resins of the Food and Drug
Administration/US.
EU Regulation
• EU 1935/2004 - 10/2011 on plastic materials and articles to come in contact with food. It is suitable to be
used in contact with aqueous, acidic, alcoholic and oily fatty foodstuffs for which stimulants A, B and D2 are used, according to EU Reg.10/2011
| Property | Method | Units | Specification | |
|---|---|---|---|---|
| Physical | Color | - | - | Black |
| Specific gravity | ASTM D792 | g/cm3 | 2,100 – 2,150 | |
| Water absorption | ASTM D570 | % | 0,03 | |
| Flammability | UL 94 | V-0 | ||
| Mechanical | Tensile strength | ASTM D4745 | MPa | ≥ 14 |
| Elongation | ASTM D4745 | % | ≥ 150 | |
| Hardness | ASTM D2240 | Shore D | ≥ 62 | |
| Ball Hardness | ASTM D785 | MPa | ≥ 25 | |
| Deformation under load (140 Kg/cm2 for 24 hrs. At 23° C) |
ASTM D621 | % | 7-9 | |
| Permanent deformation (after 24 hrs. Relaxation at 23° C) |
ASTM D621 | % | 3-4 | |
| Coefficient of static friction | ASTM D1894 | 0,14-0,15 | ||
| Coefficient of dynamic friction | ASTM D1894 | 0,10-0,11 | ||
| Wear coefficient | - | cm3 min 10-8 Kg m h |
90 | |
| Thermal | Thermal conductivity | ASTM C177 | W/ m*K | 0,53 |
| Coefficient of linear thermal expansion From 25 to 100 °C |
ASTM D696 | 10-5/°C | 8,5-13 | |
| Electrical | Volume resistivity | ASTM D257 | Ohm*cm | 106 |
| Surface resistivity | ASTM D257 | Ohm | 105 | |
