25% Carbon B (75% Virgin PTFE + 25% Soft Carbon Graphite)

 

 

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 period s, 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 alkali
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). Ce rtain highly fluorinated oils only swell and dissolve PTFE at temperatures close to the crystalline melting
point.
• Secondary Filler: contains, in addition to carbon, a small amount of graphite which further increases the wear
resistance and decreases the friction of PTFE.
Carbographite Compound enhances some characteristics of virgin PTFE such as wear, coefficient of friction, 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 & low friction
• Excellent resistance to abrasion
• Exceptional temperature resistance
• Improved surface hardness

 

Main applications
Carbographite Compound offers excellent proper ties 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 counter-surfaces.
PTFE Carbographite 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 Carbographite 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.

 

Statement on suitability for contact with foodstuff
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 .for which stimulants A, B and D2 are used, according to EU Reg.10/2011