PAI (polyamide-imide)

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Overview
 Performance Characteristics
 Typical Applications
 Typical Properties
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PAI sheet, rod - Polyamide-imide
BRANDS
TECATOR™

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PAI Data Sheet
TECATOR™
Polyamide-imide Line Card Dielectric Strength

Also, visit our technical resources section 		Overview 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 plastic material with an extremely low coefficient of thermal expansion (CTE) making it an excellent choice for applications that require machining to tight tolerances.

PAI is available in a variety of formulations including electrical, bearing and wear, and glass-filled grades.

PAI Standard Sizes

SHEET 11.8"x48" (0.197"-1.575" thick)
ROD diameter 0.295"-3.15"
  • Length, width, thickness, and diameter tolerances vary by size and by manufacturer
  • Custom sizes and colors available upon request
  • Many of our plastic materials are available as films with thicknesses of 0.029" or less

PAI Grades

  • Electrical
  • Bearing

NOTE: Several grades of PAI are available. For additional information on PAI plastic materials, contact your local Curbell Plastics representative or call Curbell at 1-888-287-2355.
Click to view
PAI sheet, rod - Polyamide-imide
BRANDS
TECATOR™

DOWNLOAD
PAI Data Sheet
TECATOR™
Polyamide-imide Line Card Dielectric Strength

Also, visit our technical resources section 		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

NOTE: PAI should not be used in environments where it will be exposed to steam since steam tends to attack the material.
Click to view
PAI sheet, rod - Polyamide-imide
BRANDS
TECATOR™

DOWNLOAD
PAI Data Sheet
TECATOR™
Polyamide-imide Line Card Dielectric Strength

Also, visit our technical resources section 		Typical Applications
Typical Properties
UNITS ASTM TEST PAI UNFILLED GRADE PAI BEARING GRADE
Tensile strength psi D-638 21,000 19,000
Flexural modulus psi D-790 711,000 870,000
Izod impact (notched) ft-lbs/in of notch D-256 2.3 2.0
Heat deflection temperature @ 264 psi °F D-648 532 534
Maximum continuous service temperature in air °F 500 500
Water absorption (immersion 24 hours) % D-570 0.30 -
Coefficient of linear thermal expansion in/in/°Fx10-5 D-696 1.7 -
Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.

FLEXURAL MODULUS HEAT DEFLECTION TEMPERATURE CONTINUOUS SERVE TEMP IN AIR
of Polyamide-imide compared with
Ultem® and PEEK
 of Polyamide-imide compared
with Ultem® and PEEK		 of Polyamide-imide compared with
Ultem® and PEEK
Chart - Flexural modulus of PAI compared with Ultem and PEEK Chart - HDT of PAI compared with Ultem and PEEK Chart - Continuous service temperature of PAI compared with Ultem and PEEK
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Contact Curbell Plastics at 1-888-287-2355 for more specific information about PAI plastic or complete our request for quote online form.