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