PTFE

Polytetrafluoroethylene (PTFE), more commonly known by its trademarked name Teflon, is a synthetic fluoropolymer which finds numerous applications. It has an extremely low coefficient of friction and is very non-reactive, and so is often used in containers and pipework for reactive and corrosive chemicals.

BENEFITS OF PTFE PROPERTIES

Food Handling Applications

  • FDA and 3A sanitary compliant 
  • Suitable for direct contact with food 
  • Chemical resistance allows cleaning without solution absorbing into material 
  • Material can be used in applications with constant operating temperature of up to 500 F 
  • Low coefficient of friction make product suitable for ease of cleaning and less wear on bearing surfaces
Application Currently Supplied as:
  • Bearing
  • Shaft seal (Dynamic and Static) 
  • Shaft wiper ring 
  • Coupling and Fitting seals 

Electrical Applications

The dielectric constant property of PTFE shows less change over a wide range of temperature and frequency than any other solid material.  This property inherently makes for an excellent long term insulator.  The dielectric strength of this material allows the user to insulate high voltage with relatively small cross-sections of material.

Application Currently Supplied as:
  • Insulating bearing
  • Insulating piston rings 
  • Insulators

Chemically Resistant

PTFE is considered one of the most chemically inert solids and remains so up to its upper temperature limitations of 500 F.  Few chemicals are known to react with this material.  

The molecular structure of PTFE also creates inherently good material properties for:  absorbtion rate, permeability, low surface adherability and low friction properties.

Application Currently Supplied as:
  • Air conditioning control valve seal
  • Air conditioning piston rings 
  • Hydraulic fluid seals 
  • Hydraulic fluid shaft seals 
  • Elastomer backup rings 
  • Fuel valve seals 
  • Fluid handling control valve seals

 

 

*Some information provided by http://wikipedia.org/