Algoflon® PTFE (polytetrafluoroethylene) is a family of fully-fluorinated polymers that provide:

  • Chemical inertness
  • Outstanding temperature resistance
  • Extremely low coefficient of friction
  • Exceptional release and water repellent properties
  • Outstanding heat resistance

 

Algoflon® D PTFE Aqueous Dispersions are ideally suited for coatings and films. They can be processed by impregnation on fibers and fabrics to impart non-stick behavior and improve the substrate’s chemical resistance. They can be cast onto metal substrates to create a protective barrier with low surface energy and high chemical resistance. Plus, they can be used as a processing aid for plastics compounding.

Algoflon® PTFE Granular Powders are non-friable particles with a low surface area. They can be compression molded into tubes, profiles and final parts. Stock shapes can be machined into parts and skived tapes.

Algoflon® DF PTFE Fine Coagulated Powders are agglomerates of fine particles with a high surface area. They can be processed by paste extrusion into tubing as well as electrical and mechanical tapes. They can also be expanded into porous products used as filtration membranes and high-performance textiles and fibers.

Micronized Powders

Frequently Asked Questions

What does Algoflon® mean and what is it?

Algoflon® is the main trade name for PTFE products commercialized by Solvay Specialty Polymers.

Algoflon® PTFE is a high-molecular-weight thermoplastic consisting wholly of carbon and fluorine atoms. Parts made of Algoflon® PTFE offer performance at extreme temperature, chemical inertness, corrosion resistance, and mechanical toughness among their many properties. The benefits of Algoflon® PTFE resin make it the preferred plastic for many applications and different processing techniques.

 

Which are the main properties of Algoflon® PTFE?
  • Outstanding chemical inertness
  • Hydrophobicity (neither water nor water-containing substances wet it)
  • Excellent thermal resistance with a maximum service temperature of 260°C
  • Maintains high strength, toughness and self-lubrication at low temperatures down to −260°C and good flexibility at temperatures above −79°C
  • Excellent electrical and dielectric properties
  • One of the lowest coefficients of friction against any solid

 

Property Value
Density 2.2 g/m3
Melting point (after 1st fusion) 327°C
Coefficient of friction 0.05–0.10
Yield strength ~ 23 MPa
Volume resistivity 1018 Ω•m
Dielectric constant ε 2.1
Dissipation factor tan(δ) < 0.0001
Dielectric strength (1 MHz) ~ 60 MV/m
What is the service temperature range of Algoflon® PTFE?

Algoflon® PTFE offers the widest range in temperature resistance among fluoropolymers: from −260°C to +260°C with minor changes in mechanical as well as electrical properties. 

What is the chemical resistance of Algoflon® PTFE?

Algoflon® PTFE has an outstanding chemical inertness. The only chemicals known to affect its carbon-fluorine bonds are some alkali metals (molten or in solution) and, at high temperatures and pressures, some rare fluorinated compounds. Some organic and halogenated solvents are absorbed causing small dimensional changes but the effects are physical and reversible.

Please ask our Specialty Polymers Experts for guidance.

Is Algoflon® PTFE resistant to Oxygen, Weather, Fire and UV light?

Algoflon® PTFE has an intrinsic resistance to natural aging and does not require anti-UV additives to resist exposure to direct sunlight. Its remarkable stability when exposed to solar radiation and weather is demonstrated by both accelerated and multiple-year outdoor weathering studies.

Algoflon® PTFE is not affected by oxidation and it is a self-extinguishing material which offers superior fire resistance according to various independent tests (such as UL-94, Limiting Oxygen Index (LOI) and auto-ignition temperature).

What are the key differences among the different Algoflon® PTFE resins?

Different polymerization processes are used to produce Algoflon® PTFE resins: 

  • emulsion polymerization
  • suspension polymerization

 

Algoflon® PTFE grades can also be classified in:

  • Homopolymer
  • Modified PTFE

Homopolymers are obtained from the polymerization only of TFE monomer while modified PTFE resins contain a limited amount of a comonomer.

According processing techniques, Algoflon® PTFE resins can be sub-divided in different family:

  • Granular Powders (fine cut, free flow and pre-sintered) 
  • Fine Coagulated Powders 
  • Aqueous Dispersions
  • Micronized Powders (with Solvay registered trademarks:
    • Polymist® – obtained through suspension polymerization
    • Algoflon® L – obtained through emulsion polymerization
  • Resins with the same composition and polymerized according to the same process can still differ in properties which determine a different behavior in the final application (e.g., molecular weight, morphology, particle size, etc.). 

 

Please ask our Specialty Polymers Experts for guidance to choose the most suitable Algoflon® PTFE grade for your application.

What families of Algoflon® PTFE grades are commercialized by Solvay?

Solvay offers resins grades relative to the following families:

  • Granular Powders – homopolymers only
    • Fine-cut Algoflon® F 
    • Free-flow Algoflon® S
  • Fine Coagulated Powders – homopolymers and modified PTFE 
    • Algoflon® DF
  • Aqueous Dispersions – homopolymers and modified PTFE 
    • Algoflon® D
  • Micronized Powders
    • Suspension polymers Polymist® 
    • Emulsion polymers Algoflon® L 
What is the physical form of Algoflon® PTFE grades and how can they be processed?

Algoflon® PTFE products are produced in form of powders, aqueous dispersions, or micronized powders to cover all possible processing techniques such as:

  • Powders: molding, extrusion, etc.
  • Aqueous Dispersions: impregnation, coating, co-coagulation
  • Micronized Powders: additives in several host materials
Which are the most common applications of Algoflon® PTFE?

Algoflon® PTFE is a versatile material that is found in many markets and applications:

  • It is well known for its use in non-stick coatings for pans and other cookware, as it is hydrophobic and possesses fairly high heat resistance.
  • Its high chemical and corrosion resistance make it useful in laboratory environments, where it is used for containers and as tubing for highly corrosive chemicals. In the chemical industry, it is used for vessel linings and pipework for reactive and corrosive chemicals.
  • Because of its superior chemical, anti-stick and thermal properties, it is used for the manufacture of gaskets and seals.
  • Its excellent dielectric properties at high radio frequencies make it suitable for use as an insulator in cables and connector assemblies and as a material for printed circuit boards used at microwave frequencies in aerospace and computer applications (e.g., hookup wire, coaxial cables).
  • In industrial applications, owing to its low friction, it is used for applications where sliding action of parts is needed (e.g., plain bearings, gears, slide plates). 
  • PTFE is widely used as a thread seal tape in plumbing applications, largely replacing thread pastes.
  • Where used as a lubricant, it reduces friction, wear and energy consumption of machinery. 
What are the most frequent processing techniques and items obtained from Algoflon® PTFE?
  • Compression Molding 
    Basic stock shapes of cylinders and billets to be machined into different final parts (i.e., seals, bearings, bushings, piston rings, diaphragms) or skived to obtained sheets employed for chemical vessel linings and gaskets.
  • Paste Extrusion 
    Wire and cable insulation; Push/pull cable liner; premium hoses; electrical tapes; spaghetti tubing; heat-shrinkable tubing; unsupported tubes hoses; thread sealant tapes; expanded webs; gaskets.
  • Impregnation, Coating, Additive 
    Impregnated woven packing; coated glass fabrics for food, industrial and architectural uses; cast films; metal coating; reinforced bearings; anti-drip additive for thermoplastics.
  • Blending with host materials 
    Used as additives in plastics, elastomers, paints and coatings, inks, and lubricants.
What are the recommendations for Algoflon® PTFE handling, transportation and storage?

General Rule

  • Storage and handling facilities should be clean since even very small foreign particles can cause defects in finished products. Keep resin drums closed and clean.
  • Sensitive to shear stress, particularly above PTFE transition point (19°C) and effect depends of PTFE type.

Algoflon® DF

  • PTFE fine coagulated powders must be handled below 19°C because above this temperature the powders are softer and can be more easily laminated. It is recommended sieving of powders below 19°C before adding lubricant. Strong vibrations and shocks must be avoided as much as possible for prevent lumps formation. 
  • Storage and transportation should be carried out in the range 5 - 19°C. Moreover, the powders must be stored in a dry room because the absorption of moisture could negatively affect its processing.

Algoflon® D

  • Temperatures lower than 5°C must be avoided to prevent irreversible settling.  
  • Some settling may occur on prolonged standing and/or heat exposure.  It is therefore strongly recommended that the product is always kept at temperatures below 35°C.  
  • The storage and transportation temperature range is 5 - 25°C.  
  • It is also advisable that the product is homogenized by gentle rolling or stirring once per month and prior to use.

Algoflon® F and S

  • Before use the temperature of the powder must be conditioned above 19 °C (between 21-27 °C). Below this temperature the powder is difficult to mold without cracks.  
  • Too high temperatures should also be avoided to prevent powder lumping and poor flow
Is it safe to process Algoflon® PTFE?

When processing Algoflon® PTFE, as with all polymeric materials exposed to high temperatures, good safety practice requires the use of adequate ventilation to prevent exposure to irritating or toxic fumes and gases that may be generated in case of excessive heating. 

As a general reference about safety when processing Algoflon® PTFE products, please consult the “Guide to the Safe Handling of Fluoropolymer Resins” published by Plastics Europe.

Please also follow the handling and storage suggestion reported in the Technical Data Sheets and Safety Data Sheets (SDS), which are available by contacting our Specialty Polymers Experts.

Where can I find Safety Data Sheet of Algoflon® PTFE grades?

Safety Data Sheets are available upon request by contacting our Specialty Polymers Experts.

Where can I find Technical Data Sheet of Algoflon® PTFE grades?

Follow this link to our library of Technical Data Sheets or contact our Specialty Polymers Experts for help with specifying the right material.

What is your normal lead time and how do I place an order?

Please contact our Specialty Polymers Experts for details.

Can I get a small sample of Algoflon® PTFE grades?

Please contact our Specialty Polymers Experts for details.

Algoflon® PTFE Dispersions

Algoflon® D grades are colloidal aqueous dispersions of PTFE particles, stabilized with appropriate surfactants. Algoflon Dispersions may contain additional formulation ingredients for the control of specific properties like wetting, rheology, stability, etc.
 

Key Features

  • Chemical inertness
  • Outstanding temperature resistance
  • Extremely low coefficient of friction
  • Exceptional release and water repellant properties
  • Outstanding heat resistance

Properties offered to the substrates

  • Chemical inertness
  • Excellent corrosion resistance
  • Exceptional heat resistance
  • Optimum dielectric and insulating properties
  • Extremely low coefficient of friction
  • Self-lubricating
  • Self-extinguishing
  • Outstanding anti-stick and release properties
  • Excellent weathering and ageing characteristics

 

Processing

The main processing techniques for Algoflon® D PTFE Dispersions are impregnation and coating. Impregnation is currently carried out onto glass fabrics and fibers, while coatings are mainly applied to metallic substrates.

Moreover, some Algoflon® D dispersions have been especially designed for particular applications including:

  • Additives for plastics (i.e. anti-dripping agent in flame retardant formulations)
  • Grades for co-coagulation with pigments and fillers (i.e. bearing applications)

 

Dispersion Grades

 

Typical Properties

Property Test Method Units Algoflon® PTFE
Service temperature   °C -260 to 260
Heat resistance     Stable up to 260°C 
Weight loss per hour: 
0.001% @ 350°C 
0.01% @ 400°C
Chemical resistance ASTM D543   High inertness
Solvent resistance ASTM D543   Insoluble up to 300°C
Water absorption ASTM D570 % 0.0
Friction coefficient ASTM D1894   Static: 0.08 
Dynamic: 0.06
Thermal conductivity ASTM C177 W/m °C 0.24
Flammability UL 94   V-0
Limiting oxygen index ASTM D2863 % >95
Radiation resistance 
to Gamma Ray
    Low: 
Electrical properties unchanged 
Mechanical properties decreased
Dialectric constant (ε) 
@60 Hz up to 2 GHz
ASTM D150   2.1
Dissipation factor (tg ε) 
@60 Hz up to 2 GHz
ASTM D150   <3*10-4
Volume resistivity ASTM D257 Ω cm 1018

Algoflon® PTFE Granulars

Algoflon® PTFE Granular resins are obtained through suspension polymerization followed by post-treatment to obtain "fine cut" PTFE powders. Algoflon® S grades free-flow powders with increased flow and bulk density are obtained through an agglomeration process.
 

Key features

  • Chemical inertness
  • Outstanding temperature resistance
  • Excellent chemical resistance
  • Extremely low coefficient of friction
  • Exceptional anti-stick, release and water repellent properties
  • Optimum dielectric and insulating properties
  • Self-lubricating
  • Self-extinguishing
  • Excellent weathering and ageing characteristics

 

Processing

Algoflon® PTFE Granulars are obtained through suspension polymerization. Specially designed post-treatments lead to two different families of grades:

  • Algoflon® F: Granular "fine cut" PTFE powders (typical average particle size in the range of 15 to 35 µm). Processed using normal compression molding techniques and compounding with fillers such as carbon, graphite, and glass fiber.
  • Algoflon® S: Free flowing powders with increased bulk density and flowability, can also be processed through isostatic and automatic molding and ram extrusion.

 

Applications

  • Seals, Gaskets and Valves, Expansion Joints, Pipes and Fittings: Used in several industries including aerospace, automotive and chemical processing due to their excellent resistance to extreme temperatures and chemicals.
  • Protective Linings: For reactors and tanks, due to their excellent resistance to extreme temperatures and chemicals.
  • Electrical Insulators: Nozzles of high voltage circuit breakers made of pure or filled Algoflon® PTFE granulars exhibit both adequate resistance to thermal erosion and excellent insulating properties at high voltages during arc break-down.
  • Electrical Tapes: Thin and flexible films with high dielectric strength, low dissipation factor and non-flammability for coils and phase insulation on motors, transformers, relays and switches.

 

Granular Grades

 

Typical Properties

Property Test Method Units Algoflon® PTFE
Service temperature   °C -260 to 260
Heat resistance     Stable up to 260°C 
Weight loss per hour: 
0.001% @ 350°C 
0.01% @ 400°C
Chemical resistance ASTM D543   High inertness
Solvent resistance ASTM D543   Insoluble up to 300°C
Water absorption ASTM D570 % 0.0
Friction coefficient ASTM D1894   Static: 0.08 
Dynamic: 0.06
Thermal conductivity ASTM C177 W/m °C 0.24
Flammability UL 94   V-0
Limiting oxygen index ASTM D2863 % >95
Radiation resistance 
to Gamma Ray
    Low: 
Electrical properties unchanged 
Mechanical properties decreased
Dialectric constant (ε) 
@60 Hz up to 2 GHz
ASTM D150   2.1
Dissipation factor (tg ε) 
@60 Hz up to 2 GHz
ASTM D150   <3*10-4
Volume resistivity ASTM D257 Ω cm 1018

 

Algoflon® DF Fine Coagulated Powders

Algoflon® DF grades are PTFE Fine Coagulated Powders produced through dispersion polymerization followed by latexes post-treatments. Algoflon® DF grades can be homo or modified PTFE polymers and may differ in MW and MWD, in modifier type, content and distribution, and morphology. Antistatic compounds are also available.
 

Key features

  • Chemical inertness
  • Outstanding temperature resistance
  • Outstanding heat resistance
  • Extremely low coefficient of friction
  • Outstanding anti-stick, release and water repellent properties
  • Optimum dielectric and insulating properties
  • Excellent corrosion resistance
  • Self-lubricating
  • Self-extinguishing
  • Excellent weathering and ageing characteristics

 

Processing

Algoflon® DF PTFE is a family of fine coagulated powders which are mainly transformed into final items by paste extrusion. These powders may differ in molecular weight, modifier (type, content, distribution inside the particle), and particle size: the overall reduction ratios range is 1:10 up to 1:3000.

 

Typical Properties

Property Test Method Units Algoflon® PTFE
Service temperature   °C -260 to 260
Heat resistance     Stable up to 260°C 
Weight loss per hour: 
0.001% @ 350°C 
0.01% @ 400°C
Chemical resistance ASTM D543   High inertness
Solvent resistance ASTM D543   Insoluble up to 300°C
Water absorption ASTM D570 % 0.0
Friction coefficient ASTM D1894   Static: 0.08 
Dynamic: 0.06
Thermal conductivity ASTM C177 W/m °C 0.24
Flammability UL 94   V-0
Limiting oxygen index ASTM D2863 % >95
Radiation resistance 
to Gamma Ray
    Low: 
Electrical properties unchanged 
Mechanical properties decreased
Dialectric constant (ε) 
@60 Hz up to 2 GHz
ASTM D150   2.1
Dissipation factor (tg ε) 
@60 Hz up to 2 GHz
ASTM D150   <3*10-4
Volume resistivity ASTM D257 Ω cm 1018

 

Algoflon® DF Applications

Tubing, Pressure Hoses, Pipe-Liners

Algoflon® DF PTFE powders are currently used for the production of tubing (including shrinkable and spaghetti tubing), pressure hoses (i.e. flexible and convoluted hoses) and pipe-liners 

These final items are currently used for the transportation of aggressive chemicals and fuel exhibiting the excellent performance requested by a wide rage of industries such as chemical processing, automotive and aerospace.

Markets Applications
Aerospace Conductive flexible hoses for static dissipation, Flexible conduit used in aircrafts, Transport of hydraulic fluid and fuel in jet engines
Architectural Automatic painting lines
Chemical and Processing Industry Lining of metal pipes and fittings for chemical reactors and columns
Electrical, Electronics & Semiconductors Cable sheathing for electrical lines, Electrical conduits for wiring systems (e.g., wire harnesses and cable assemblies), Hermetic motor insulation
Food Processing Food or liquid transportation at high temperature (e.g., hot water or coffee)
Industrial & Mechanical Compressor discharge lines, Hoses for plastic molding presses, Mechanical protection
Petrochemical Transport of aggressive chemicals and fuel, particularly at high pressure
Pharmaceutical Transfer lines of high purity fluids
Transportation Wiring systems in high temperature applications and high corrosive atmospheres such as engine compartments, 
Oxygen cables
Wire Insulation

Algoflon® DF offers the low friction, electrical and high temperature characteristics needed for wire insulation. The requirements for this application also include:

  • Optimum dielectric and electrical properties
  • High chemical inertness
  • High thermal stability
  • High flame resistance
  • Low smoke generation
  • High stress-crack resistance
  • Good pigment ability
  • High resistance to ageing

Electrical applications for Algoflon® DF PTFE powders include electrical primary insulation of hook-up wires, coaxial cables and interconnecting wiring for aerospace and automotive industries.

Markets Applications
Aerospace Aircraft entertainment system cables
Chemical & Processing Industry Wires used in aggressive environments and/or at high temperatures
Consumer Electronics High frequency coaxial designs for Radio Frequency (RF) and microwave markets, 
Industrial lead wires for power supplies in appliances, consumer electronics and white goods, 
High speed coaxial cables for data transmission
Industrial & Mechanical Motor winding, 
Wires for power supplies in industrial equipment
Electronics Internal wiring of electronic equipment, 
Coaxial cables in electronic computer circuit
Telecommunications Antennas and satellites in both military and commercial applications, 
Coaxial cables for wireless and cellular communication systems
Transportation Wiring systems in high temperature applications and high corrosive atmospheres such as engine compartments, 
Oxygen cables

 

Mechanical & Electrical Tapes

Algoflon® DF PTFE powders are suited for applications such as thread seal tapes and electrical tapes for wrapping (i.e. primary insulation and over-cable jacketing applications).

Markets Applications
Architectural Sealants for threads in household appliances and waterpipe threads
Industrial & Mechanical Tapes for object wrapping to reduce friction or provide quick release properties
Electrical, Electronics & Semiconductor Tapes for coils and phase insulation of motors, transformers, relays and switches
Telecommunications Insulation of high speed coaxial cables for data transmission
Membranes

Algoflon® DF PTFE powders are currently utilized for the manufacture of porous membranes with the porosity requested by the final application (i.e., filtration, breathable garments, wire insulation).

Markets Applications
Aerospace Insulation of high speed coaxial cables with lighter weight
Chemical & Processing Industry Membranes for filtration
Garments Recreational and industrial clothing textiles
Fibers

Fibers obtained from Algoflon® DF PTFE powders are utilized for the manufacture of filtration media with unique release properties combined with very high chemical and thermal resistance.

Markets Applications
Architectural Waterproof fabrics made of PTFE fibers for roof structures, such as domes and tents
Food Processing Conveyor belts
Industrial & Mechanical Release fabrics
Electrical, Electronics & Semiconductors Electrical lacing cords
Transportation Bearing made of woven fabrics

In addition, Algoflon® DF 130 was designed for the manufacture of fibers suitable for dental floss production. It exhibits very good stretchability and homogeneity of the stretched item.

Cords and Packings

Some especially designed Algoflon® DF PTFE powders can be used for the production of expanded PTFE cords and packings to be used in sealing applications.

Additive for Plastics

The high viscosity of Algoflon® DF PTFE powders at melt temperature and their ability to fibrillate improve anti-dripping properties in plastics. Resins benefiting from the anti-dripping properties of Algoflon® DF PTFE powders are ABS, polycarbonates, polyurethanes, and polystyrene.

Algoflon® PTFE Technical Data Sheets