Polyurethane

Polyurethane

Prop­er­ties

  • Fea­tures the elas­tic­ity of rub­ber com­bined with the tough­ness of metal
  • Avail­able in a very broad hard­ness range
  • Abrasion-, impact– and tear– and weather-resistant
  • High load-bearing capacity
  • Excel­lent elas­tic memory
  • Oil– and solvent-resistant
  • Excel­lent elec­tri­cal insu­lat­ing properties
  • Heat– and cold-resistant

Com­mon uses

  • Replaces met­als in sleeve bear­ings, wear plates, sprock­ets, rollers, offer­ing weight reduc­tion, noise abate­ment and improved wear resistance
  • Metal form­ing pads
  • Wear strips
  • Bumpers
  • Machin­ery mounts
  • Cut­ting surfaces
  • Gas­kets, seals and rollers
  • Molded wire and cable har­ness applications
Polyurethane sheets

Polyurethane sheets

Mate­r­ial Specifications

Mechan­i­cal ASTM
Test
MP300 MP600 MP750 MP850 MP900 MP950 MP160 MP175
Ten­sile properties
Break (psi) D-412 380 4,500 5,500 6,000 4,500 5,500 6,500 7,500
100% mod­u­lus (psi) D-412 80 250 350 600 1,100 1,800 3,000 5,500
300% mod­u­lus (psi) D-412 170 600 1,000 1,500 2,100 4,000 6,500 -
Elon­ga­tion (%) D-412 515 500 500 500 450 320 300 225
Break set (%) D-412 - 5 10 10 10 10 15 -
Mod­u­lus of elas­tic­ity (psi) D-638 - 5 15 25 50 90 125 -
Com­pres­sion prop­er­ties (shape fac­tor 0.56)
Deflec­tion (psi) @ 5% D-575 15 30 70 180 310 450 1,000 2,150
Deflec­tion (psi) @ 10% D-575 25 70 140 390 625 890 1,600 3,700
Deflec­tion (psi) @ 15% D-575 34 110 220 560 875 1,170 2,200 4,700
Deflec­tion (psi) @ 20% D-575 38 160 280 690 1,125 1,400 3,000 6,000
Deflec­tion (psi) @ 25% D-575 44 220 330 800 1,350 1,600 4,000 7,250
Com­pres­sion set (%)
Method A @ 70° C D-395 - 10 8 5 - 1 10 15
Method B @ 70° C D-395 9 10 15 25 30 40 50 -
Durom­e­ter, Shore ±5 D-2240 30A 60A 75A 85A 90A 95A 60D 75D
Tear prop­er­ties, pli, Die C D-624 90 200 250 400 400 450 700 850
Abra­sion resis­tance, Tabor
H18 @ 1000gm. load, mg. loss per 1,000 cycles C-501 - 30 40 40 30 40 80 450
Spe­cific gravity D-792 1.20 1.26 1.26 1.26 1.10 1.15 1.18 1.18
Base Ester Ester Ester Ester Ether Ether Ether Ether

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.