Hereafter a list of a few (so far) typical commercial applications for which our fluoroelastomers have been used in a metal insert overmolding process.


ApplicationPicturePolymerInsert materialCTD ref / Comments

PTU, axel, pinion, differential, wheel hub seals

Provides sealing of the driveline systems downstream from the trans.

Tecnoflon P types

Tecnoflon PL types

Tecnoflon VPL types

Tecnoflon BR types

metal

Luca Colombo

  • >150°C operation
  • Gear lube + FM + ATF
  • Low temp flexibility
  • Wear resistance

Engine crankshaft seals 

Provides sealing of the rotary shafts entering and exiting the internal combustion engine


Tecnoflon® FOR bis-cure types

Tecnoflon® P757 & P457

Tecnoflon® P959 & P459

metal

Luca Colombo

  • >150°C operation
  • Exposure to automotive engine oils –natural or syn.
  • Diluted fuels –gas or diesel and combustion particulates
  • Wear resistance
  • Excellent compression set for non-spring types.
Engine crankshaft flange

Algoflon PTFEPPS or PPA
  • up to 150°C operation
  • exposure to automotive engine oils
  • dimensional stability

Shock absorber seals

Provides sealing of the of the shock absorber (dampener) piston rod.

Tecnoflon® FOR grades (66%F terpolymer types)

Tecnoflon® PL grades

Tecnoflon® VPL85540

metal

Luca Colombo

  • Max temp: ~200°C in some limited situations.
  • Excellent low temp flex.
  • Extrusion / high pr. resistance leading to very high hardness seals
  • Low friction/sticking
  • Hydraulic fluid res.

Valve stem seals (VSS)

VSS do not stop all oil leakage but are designed to specifically meter oil along the valve guide and stem interface of both the intake and exhaust valves

Tecnoflon® FOR grades (copo, terpo preferred)

Tecnoflon® P 757 & P457

Tecnoflon® P959 & P459

Tecnoflon® BR9151

metal

Luca Colombo

  • >150°C operation
  • Exposure to automotive engine oils –natural or syn.
  • Diluted fuels –gas or diesel and combustion particulates
  • Reciprocating wear resistance

Water pump seals

Provide effective sealing of the water pump module.  Resistance to water/coolant and elevated temps is required

Tecnoflon® PL grades

Tecnoflon® VPL85540

metal

Luca Colombo

  • Coolant Resistance
  • Acid/Base resistance for various coolant types
  • Excellent low temp flex
  • Excellent wear resistance

Spark plug tube seals

Tecnoflon® FOR grades

Tecnoflon® P757 & 457

metal

Luca Colombo

  • +150°C operation
  • Eng oil/dil. fuel resistance
  • Good CSR


Gaskets

Tecnoflon® P757 & P457

Tecnoflon® PLX756

metal

Luca Colombo

  • +200°C operation
  • Eng oil/dil. fuel resistance
  • Adhesion to metal
  • Excellent CSR
Cylinder head gasket

Tecnoflon® FKM PL 855metal
  • up to 150°C operation
  • exposure to automotive engine oils and coolants (glycol/water)
  • dimensional stability
O-rings, washer, plugs, grommets, ...

Tecnoflon® FOR grades

Tecnoflon® P757 & 457

Tecnoflon® PL grades

Tecnoflon® VPL grades

metal

Luca Colombo

  • +150°C operation
  • Eng oil/fuel, dil-fuel, acid/gas, coolant/water, ATF, Gear lube & resistance
  • Extrusion/pressure res.
  • Excellent CSR