PTFE Carbon Rod

PTFE Carbon Filled has good chemical resistance to corrosive environments, has better creep and wear resistance compared to standard PTFE materials. These properties are improved with the addition of a carbon filler. This filler improves dimensional stability, raises the heat deflection temperature, improves creep resistance and the dynamic bearing performance. PTFE Carbon-Filled exhibits good initial wear and rubbing/sliding contact characteristics in both dry and wet/water applications. It is frequently used in piston rings to reduce cylinder wall wear by entrapping abrasive foreign particles in their relatively soft surfaces.

Carbon Filled PTFE was developed to provide a PTFE based material with improved mechanical strength.

PTFE on its own has excellent frictional properties, elasticity and wear resistance but relatively poor mechanical strength and tends to fail in high PV applications.

Carbon in itself is a brittle material with poor wear properties and mechanical strength. However with the two combined in Carbon Filled PTFE formulations, the resultant material has excellent mechanical and wear properties, retains the excellent frictional properties and is an excellent choice for seals and rings in dynamic and high pressure applications.

Carbon filled PTFE also provides good thermal conductivity, low permeability and is also electrically conductive making it a good choice for anti-static applications.

The most common carbon filled PTFE composition is 75% Virgin PTFE with 25% Carbon powder by weight.

When a filler ratio or type is unspecified, it is fair to assume this is the material. However it doesn’t tell the whole story. The type and percentage of carbon added to PTFE is a variable and is critical to material performance.

It can be as little as 0.2% and as much as 40%. Different percentages of carbon will 

APPLICATIONS : Piston rings;Pump housings;Valve seats;Gaskets;Roller coverings;Shaft bearings;Filter housings;Etching plates;Shaft seals;Slide runners;Chemical engineering;Conveyor technology;Pump and instrument construction;Electrical industry;Electronics;Laser technology;Fume purification;Pure water production;Cryogenics;Filter technology;Food & beverage;Medical technology.

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Molded PTFE Rod

PTFE Rod is manufactured in two distinct ways, extruded PTFE Rod is the most popular and is relevant to smaller sizes, Moulded PTFE Rod is relevant to the diameters over 100mm in size, smaller sizes are also available in extruded form.

Molded PTFE rod is generally used as machining stock for all kinds of chemical, electrical and mechanical components where the outstanding performance characteristics of PTFE are required. Various fillers are available to modify the properties of PTFE to meet application requirements.

Fluoro-Plastics compression molds rods and cylinders for machining in a wide range of sizes. The most common sizes are listed in the table below, but many other combinations of OD and ID are available.  Molded rods are preferred for machining because compression molding yields greater material homogeneity for the finished part.

All rods can be etched for bonding, and can be mounted on a plywood disk for less waste in machining.

All rods can be made with filled (reinforced) PTFE to enhance the performance parameters of PTFE. Materials available for reinforcement are Glass Fiber, Carbon, Graphite, Bronze, Molybdenum Disulfide, and Stainless Steel.

Teflon Solid round bar

Teflon Solid round bar is generally used as machining stock for all kinds of chemical, electrical and mechanical components where the outstanding performance characteristics of PTFE are required. Various fillers are available to modify the properties of PTFE to meet application requirements. 

Teflon Solid round bar is suitable for processing a variety of gaskets, seals and lubrication materials work in corrosive media and an electrically insulating parts used at various frequencies such as Teflon resin filled not added (may contain renewable Teflon resin) by molding, paste extrusion or ram extrusion molding process bars.

Teflon Solid round bar is manufactured by techniques of paste extruding and RAM extruding method in the diameter from 5 to 110mm with Teflon granular resin. As PTFE(Teflon) has a very low co-efficient of friction, the surface of extruded PTFE rod has similar friction levels to ice. Extruded PTFE rod can work at -180° C ~+260° C and is the best electrical insulator of all known plastics. 

Teflon Solid round bar can be used as lining, seal components, wire insulation, slide block, gasket, seal, and dielectric material and so on. 

Teflon Solid round bar is generally used as machining stock for all kinds of chemical, electrical and mechanical components where the outstanding performance characteristics of PTFE are required.  Various fillers are available to modify the properties of PTFE to meet application requirements.

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The 3 mm diameter teflon rod

Usage temperature range is very broad (Celsius from - 200 degrees to +260 degrees); Anti-majority chemical substance's corrosiveness, except some fluorides and alkalinity moltenmetal;Excellent mechanical properties, aging resistance;Excellent flame resistance(Conforms to ASTM-D635 and D470 test step),in the air to be regulated as a flame retardant material;Very low water absorption......

Teflon rod is generally used as machining stock for all kinds of chemical, electrical and mechanical components where the outstanding performance characteristics of teflon are required. Various fillers are available to modify the properties of teflon to meet application requirements. 

Specification:

• OD 3mm
• material:100% teflon virgin moulded rod
• quality: white,smooth,no air hole
• Special gravity : 2.10 ~ 2.30
• Tensile strength: 20.0 MPa
• Ultimate elongation: 150%
• aging resistance
• radiation resistance
• low permeability
• high press resistance
• anti-corrosion,anti-volatilization
• lubricative

Other sizes:Φ70mm Φ65mm Φ60mm Φ55mm Φ50mm Φ45mm Φ40mm Φ35mm Φ30mm Φ25mm Φ20mm Φ18mm Φ16mm Φ15mm Φ14mm Φ13mm Φ12mm Φ10mm Φ9mm Φ8mm Φ7mm Φ6mm Φ5mm

Application:It is used as electric insulation parts under various frequencies, sealing gasket in various corrosive medium, and also used as mechanical lubricating materials.

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PTFE Virgin Rod

PTFE Virgin Rod Features:Usage temperature range is very broad (Celsius from - 200 degrees to +260 degrees); Anti-majority chemical substance's corrosiveness, except some fluorides and alkalinity moltenmetal;Excellent mechanical properties, aging resistance;Excellent flame resistance(Conforms to ASTM-D635 and D470 test step),in the air to be regulated as a flame retardant material;Very low water absorption......

One key importantadvantage of PTFE Rod is its operating temperature range,it can easily outperform other engineering plastics by being able to perform continuously at-250°C, right up to an amazing 250°C. Another important advantage of PTFE Rod is its outstanding co-efficient of friction, PTFE is in the record books ashaving one of the lowest friction values known to man. PTFE also has excellentacid and chemical resistance. Another feature of PTFE is its ability to set byor due to compression.

PTFE has excellent electrical resistance. PTFE is alsowater repellent and is often used in the manufacture of modern high performing,water repellent and breathable clothing.

PTFE is excellentfor low friction bearings, bushes, rollers and pulleys. PTFE is also almostexclusively used in cryogenic components due to its ultra low operating temperatures.PTFE Rod is regularly used for seals. PTFE Rod has become a very important engineering plastic used within the aerospace industry and aeronautics.

PTFE isoften used within the food industry companies. Another useful application overthe years has been in the use of product or component handles due to its resistance to heat and heat transfer. When an application for electrical resistance becomes too high for other materials, PTFE Rod can fill a very important gap.

Because PTFE hassuch a low co-efficient of friction it offers a material that when used willreduce load and drag in bearings to improve efficiency and reduce frictional losses and PTFE will outlast other materials. Because PTFE Rod will set due to compression, PTFE seals will conform to mating components resulting inexcellent sealing capacity. PTFE is reasonably easy to machine which helps withreduced machining costs and increased capacity and efficiency. PTFE isresistant to most acids allowing this material to be used in aggressive environments to where such materials as Polypropylene are unsatisfactory. 

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