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Cast Urethane Hardness Data

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Typical Physical Properties of Cast Urethanes - Precision Urethane


Image Map Rubbers Cast Urethanes Plastics

Note:

The Durometer "A" Scale is used for the softer Urethanes.

The Durometer "D" Scale is used for (above 95A Durometer)

CompoundASTM Test MethodPP2202PP2502PP2602PP2702PP2802PP1802PP2902PP1902
Hardness
Duro A D2240 20 50 60 68-73 80 85 90 90
Tensile Modulus, psi (MPa)
50% ext D412 18              
100% ext D412 25 150 280 425 670 780 975 1115
300% ext D412 45 300 390 620 1020 1405 1750 2050
Ultimate Tensle Strength, psi (MPa) D412 80 3500 3500 5500 6900 5295 8550 6480
Ultimate Elongation, % D412 525 590 530 560 630 580 670 470
Tear Strength, pli (kN/m)
Die C D624 30 128 180 290 395 425 480 490
Split Tear D470 10 34 25 130 235 120 260 110
Compression Set, % after 22 hrs at 158° F (70° C)
Method B, 25% Deflection D395 6 1.7 6 22 26 28 24 30
Resilence (rebound), % D2632     32 47 39 55 38 48
CompoundASTM Test
Method
PP2501PP1501PP2601PP2701PP1701
Hardness
Duro D D2240 50 50 60 70 70
Tensile Modulus, psi (MPa)
50% ext D412          
100% ext D412 1585 2010 2860 3200 5600
300% ext D412 3295 4100 5575 8400  
Ultimate Tensle
Strength, psi
(MPa)
D412 8565 7340 8220 8400 7400
Ultimate
Elongation, %
D412 524 415 400 300 260
Tear Strength, pli (kN/m)
Die C D624 555 575 705 980 860
Split Tear D470 310 205 422 476 280
Compression Set, % after 22 hrs at 158° F (70° C)
Method B, 25%
Deflection
D395 29 30 35 36  
Resilence
(rebound), %
D2632 28 42 44 52 58

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Technical Data
Society of Plastics Engineers Polyurethane Manufacturers Association

Precision Urethane
612 3rd St
Hempstead, TX 77445

800-475-2072