Hard Material Specification

Physical Property ASTM Method A B C D E
Hardness, Shore A - 95 - - - -
Shore D - 50 60 65 70 74
Tensile, psi (MPa) D412 5500 (37.9) 6700 (46.2) 7000 (48.3) 7000 (48.3) 7100 (48.9)
Elogation At Break, % D412 350 290 260 250 230
100% Modulus, psi (MPa) D412 2200 (15.2) 3600 (24.8) 4100 (28.3) 4500 (31.0) 5300 (36.5)
300% Modulus, psi (MPa) D412 4100 (28.3) - - - -
Split Tear, lb./in. (kN/m) D470 125 (21.9) 115 (20.1) 115 (20.1) 130 (22.8) 140 (24.5)
Die C Tear, lb./in. (kN/m) D624 500 (87.6) 600 (105) 670 (117) 800 (140) 900 (158)
Bashore Rebound, % D2632 42 40 40 - -
Compression Set (Method B) 22 Hours At 158°F (70°C), % D395 32 28 29 - -
Compressive Modulus, psi (MPa)
Third Cycle D575
5% 500 (3.4) 1000 (6.9) 1310 (9.0) 1650 (11.4) 2150 (14.8)
10% 840 (5.8) 1650 (11.4) 2110 (14.5) 2600 (17.9) 3700 (25.5)
15% 1200 (8.3) 2300 (15.9) 2900 (20.0) 3400 (23.4) 4700 (32.4)
20% 1650 (11.4) 3100 (21.4) 3800 (26.2) 4200 (29.0) 6000 (41.4)
25% 2100 (14.5) 4000 (27.6) 4840 (33.4) 5200 (35.8) 7250 (50.0)
Brittle Temperature, °F (°C) D748 <-94(<-70) <-94(<-70) <-94(<-70) <-94(<-70)
Spcific Gravity D792 1.13 1.16 1.17 1.18 1.2
Dynamics - Excellent Excellent Excellent Excellent Excellent