Ultra-high mol­e­c­u­lar weight poly­eth­yl­ene (UHMWPE) [Tivar®, Polystone®]


  • General-purpose plas­tic
  • Cost-effective
  • Meets USDA, FDA and 3-A Dairy guide­lines for food pro­cess­ing and handling
  • Wear– and corrosion-resistant
  • Low-friction sur­face
  • Moisture-resistant
  • Chemical-resistant
  • Noise-reducing
  • Also avail­able in anti­sta­tic and oil-filled

Com­mon uses

  • Bal­lis­tic vests
  • Vehi­cle armor
  • Bow strings
  • Climb­ing equipment
  • Fish­ing line
  • Web­bing
  • Bio­ma­te­r­ial for total joint replacement
  • Man­u­fac­ture of polyvinylchlo­ride windows


Mate­r­ial Specifications

ASTM or UL test Prop­erty ECTFE
D792 Den­sity (g/cm3) 0.93
D570 Water absorp­tion, 24 hrs (%) 0
D638 Ten­sile strength (psi) 3,300
D638 Ten­sile mod­u­lus (psi) 120,000
D638 Ten­sile elon­ga­tion at break (%) 460
D790 Flex­ural strength (psi) -
D790 Flex­ural mod­u­lus (psi) 110,000
D785 Hard­ness, Shore D65
D256 Izod notched impact (ft-lb/in) -
D696 Coef­fi­cient of lin­ear ther­mal
expan­sion (x 10–5 in./in./°F)
D648 Heat deflec­tion temp (F°/C°) at 264 psi -
D3418 Melt­ing temp (F°/C°) 276/136
- Max oper­at­ing temp (F°) 180
C177 Ther­mal con­duc­tiv­ity
UL94 Flam­ma­bil­ity rating V-O
D150 Dielec­tric con­stant at 1 MHz 2.5
D150 Dis­si­pa­tion fac­tor at 1 MHz -
D150 Dielec­tric strength (V/mil) -
D257 Vol­ume resis­tiv­ity (ohm/cm) at 50% RH >1015

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.