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.

Performance

Key features

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

The best choice in those industries requiring:

  • Excellent chemical inertness
  • Exceptional heat resistance
  • Optimum dielectric and insulating properties
  • Self-lubricating
  • Self-extinguishing
  • Outstanding anti-stick and release properties
  • 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.

Data Sheets

Algoflon® PTFE Granular Product Grades
Algoflon® F 5/S
Algoflon® F 5
Algoflon® F 7
Algoflon® S 121

Typical Properties

PropertyTest MethodUnitsAlgoflon® 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 resistanceASTM D543 High inertness
Solvent resistanceASTM D543 Insoluble up to 300°C
Water absorptionASTM D570%0.0
Friction coefficientASTM D1894 Static: 0.08
Dynamic: 0.06
Thermal conductivityASTM C177W/m °C0.24
FlammabilityUL 94 V-0
Limiting oxygen indexASTM 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 resistivityASTM D257Ω cm1018