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Urethane Properties

Urethane Properties / Physical Properties Of Urethane / Urethane Hardness / Urethane Chemical Resistance

Typical Physical Properties of Compounds of Urethane

Urethane Type	L42	L100	L167	L315
Hardness, Durometer Value (ASTM d676-59T)	80A	90A	95A	75D*
Specific Gravity	1.07	1.10	1.13	1.21
Tensile Strength, MPa (psi) (ASTM D412-61T)	20.7 (3,000)	31.0 (4,500)	34.5 (5,000)	62.0(9,000)
Elongation At Break, % (ASTM D412-61T)	800	450	400	270
100% Modulus, MPa (psi) (ASTM D412-61T)	2.8 (400)	7.6(1,100)	12.4(1,800)	32.0(4,650)
Compression Set, % Method B (ASTM D395) Method A (ASTM D395)**	45 -	27 9	40 10	- 10
Resilience, % Rebound (Bashore)	-	45	40	45
Impact Resistance, Izod notched J/m (ft.lb./In) (ASTM D256) +24 Degrees C (+75Degrees F) -40 Degrees C (-40 Degrees F)	Flexed -	Flexed -	Flexed -	800.7(15) 58.7 (1.1)
Solenoid Brittle Temp., Degrees C (Degrees F) (ASTM D746-57)	Below -80 (Below -120)	Below -70 (Below-94)	Below -70) (Below -94)	-64 (-83)
Abrasion Index, NBS, % (ASTM D1630, Nat'l Bureau of Standards Abrader)	110	175	400	435
Tear Strength Split, kN/m (pli) (ASTM D470)	12.2(70)	13.1 (75)	26.2 (150)	192.2 (110)
* The D Scale is used to measure durometer hardness above 95A by Shore, Rex, or Wallace durometers. ** Measured at 9.3 MPa (1,350 psi)

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