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PAI IS WIDELY USED FOR:

  • Semiconductor machinery parts
  • Chip test sockets
  • Aerospace components
  • Electrical connectors
  • Bearings and bushings
  • Bearing cages
  • Pump and valve parts
  • Seals

PERFORMANCE CHARACTERISTICS:

  • Strong and stiff
  • Performs well at elevated temperatures
  • Extremely low thermal expansion
  • Excellent electrical insulating properties (electrical                 grade)
  • Outstanding bearing and wear properties (bearing                   grade)
  • Good resistance to many common solvents, fuels, and           acids

COMMON BRANDS:

  • Tecator
  • Torlon® PAI
  • Duratron® PAI

TECHNICAL RESOURCES

  Semiconductor & Electronics Mfg Line Card
​  Aerospace & Defense Applications Line Card
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PAI

Extremely strong, stiff, dimensionally stable plastic material often used in elevated temperature environments

PAI (polyamide-imide) is an extremely strong and stiff plastic material. It is often used in elevated temperature environments where other thermoplastics would lose their mechanical properties. 

PAI is a very dimensionally stable material with an extremely low coefficient of thermal expansion (CTE) making it an excellent choice for applications that require machining to tight tolerances. It is available in a variety of formulations.

PAI MATERIAL OPTIONS

Unfilled/Electrical Grade PAI – has extremely high dielectric strength and it is often used for applications where it functions as an electrical insulator. 

Bearing Grade PAI – can be used for demanding bearing applications that require extreme loads, speeds, and/or elevated temperatures.

SOLVAY  TORLON® POLYAMIDE-IMIDE MATERIALS
High strength, stiff, low friction engineering plastic with good wear properties.
High strength, stiff, low friction engineering plastic with good wear properties.
High strength, stiff, low friction engineering plastic with good wear properties.
High strength, stiff, low friction engineering plastic with good wear properties.

TYPICAL PROPERTIES OF PAI

  UNITS ASTM
TEST
TORLON
4203
TORLON
4301
TORLON
5530
Tensile strength psi D638      
Flexural modulus psi D790      
Izod impact (notched) ft-lbs/in
of notch
D256      
Heat deflection
temperature
@ 264 psi
°F D648      
Maximum continuous
service temperature
in air
°F        
Water absorption
(immersion
24 hours)
% D570      
Coefficient of
linear thermal
expansion
in/in/
°Fx10-5
D696      
Coefficient of
friction (dynamic)
         

 
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