Crossflon 403


Crossflon 403 is black in colour and provides a good balance of properties for bearing applications.

It has an extremely low coefficient of friction, a high level of chemical inertness and good wear resistance, especially against soft mating surfaces.

Crossflon® 403 has higher creep resistance and thermal conductivity than unfilled PTFE to allow for greater loading ability and cooler running when used in dry conditions.

Crossflon 403 Products

  • Auto-moulded bearings & components
  • Sleeve, flanged and thrust bearings
  • Piston rings
  • Stamped and formed seals
  • Machined parts
  • Moulded shapes

The Crossflon 403 is commonly found in:

Braking systems

  • Nascar
  • Formula One
  • Rally Cars

Other typical applications the Crossflon 403 can be found in are:


  • Pumps
  • Mixers
  • Compressors
  • Appliances
  • Automotive lip seals
  • Liners
  • Linear slides
  • Pipe supports
  • Wear bands
  • Dust seals
  • Solenoid valves
  • TPS shaft seals
  • EGR valves

PTFE Design

Beldam Crossley can create PTFE products to your specification, creating a product with the correct PTFE grade material that works best for your application.

Contact our team of design engineers with your requirements and see how we can help you.


Beldam Crossley has been moulding PTFE for over half a century. We have since developed a wide range of High Performance Crossflon® materials, each suited to a specific application.

Crossflon 403