Pilotseal FKM


PILOTSEAL FKM – is a Fluoroelastomer with outstanding resistance to oxygen, ozone, weather, flame and chemicals. Suitable for higher temperature applications within the Petrochemical, Pharmaceutical and Aerospace Industries.

Applications and Characteristics

  • Food Use Not recommended
  • Water Use Fair
  • Mineral Oil Use Good
  • Abrasion resistance Moderate
  • Ozone weather resistance Excellent
  • Flame retardancy Not recommended
  • Electrical resistance Moderate
  • General Purpose Not recommended

DuPont grades also available on request

Sizes Available

  • Thickness Range 1 to 6mm 10m rolls
  • Thickness Range 8 to 25mm 5m rolls
  • Standard Width 1.2m

* Typical Shore Hardness range 40—70 also available

Physical Properties

Base Polymer
Indentation Hardness
ASTM D2240 00 70 degrees
Specific Gravity
ASTM D792 1.98 g/cm3
Tensile Strength Min.
ASTM D412 6MPa
Elongation @ Break Min.
ASTM D412 200%
Min. Cont. Work Temp
– 30°C
Max. Cont. Work Temp.
Max. Intermittent Work Temp.
Compression Set
70°C 22 Hours ASTM D395 Meth B 50%

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.

Pilotseal FKM