Polyimide Sintimid V

Poly­imide [Sin­timid V®]


  • Heat– and wear-resistant
  • Long-term ther­mal stability
  • Creep-resistant
  • Spe­cialty grades with inter­nal lubri­cants such as PTFE and graphite are avail­able for appli­ca­tions requir­ing supe­rior wear resis­tance and lower coef­fi­cients of friction.
  • High purity
  • Chemical-resistant

Com­mon uses

  • Seals
  • Thrust wash­ers
  • Bush­ings
  • Wear pads
  • Wafer-handling com­po­nents
  • Insu­lat­ing and sup­port ele­ments in elec­tri­cal weld­ing and braz­ing equipment
sintimid polyimide

Sin­timid Polyimide

ASTM or UL test Prop­erty Unfilled
D792 Den­sity (lb/in3)/(g/cm3) 0.048 (1.34)
D570 Water absorp­tion, 24 hrs (%) 0.62
D638 Ten­sile strength (psi) 20,300
D638 Ten­sile mod­u­lus (psi) -
D638 Ten­sile elon­ga­tion at break (%) 9
D790 Flex­ural strength (psi) 29,700
D790 Flex­ural mod­u­lus (psi) 580,000
D785 Hard­ness, Shore D -
D256 Izod notched impact (ft-lb/in) 0.6
D696 Coef­fi­cient of lin­ear ther­mal
expan­sion (x 10–5 in./in./°F)
28 x 10–9
D648 Heat deflec­tion temp (F°)
at 264 psi
D3418 Melt­ing temp (F°/C°) -
- Max oper­at­ing temp (F°) 626
C177 Ther­mal con­duc­tiv­ity
UL94 Flam­ma­bil­ity rating -
D150 Dielec­tric con­stant at 1 MHz -
D149 Dielec­tric strength (V/mil) -
D150 Dis­si­pa­tion fac­tor at 1 MHz -
D257 Vol­ume resis­tiv­ity (ohm/cm) at 50% RH -

These are typ­i­cal val­ues for ref­er­ence and com­par­i­son only. They should not be used as a basis for design spec­i­fi­ca­tions or qual­ity con­trol. Con­tact us for the man­u­fac­tur­ers’ com­plete mate­r­ial prop­erty datasheets. All val­ues were taken at 73°F (23°C) unless oth­er­wise noted.

Don’t see what you’re look­ing for? Call us at 800–423-2769 or email us at tom@crownplasticsinc.com.