Solid Rigid Polyurethane Foam Properties

This closed cell polyurethane foam is most commonly used for testing screw pullout, insertion and stripping torque. Solid rigid polyurethane foam provides a uniform structure with only ±10% variation in density. Material properties cover a broad range of human bone qualities allowing you to select an appropriate density for your study. This closed cell foam conforms to ASTM F-1839-08 “Standard Specification for Rigid Polyurethane Foam for Use as a Standard Material for Testing Orthopaedic Devices. Available Grades: 5, 10, 12, 15, 20, 25, 30, 35, 40, 50

DENSITY COMPRESSION TENSION SHEAR Shore D Hardness
DENSITY COMPRESSION TENSION SHEAR SHEAR
(pcf) (g/cc) Volume Fraction Strength (MPa) Modulus (MPa) Strength (MPa) Modulus (MPa) Strength (MPa) Modulus (MPa)
5* 0.08 0.07 0.6 16 1.0 32 .59 7.1 10
8 0.13 0.11 1.5 38 1.3 56 1.2 14 14
10* 0.16 0.14 2.2 58 2.1 86 1.6 19 15
12* 0.19 0.16 3.2 81 2.5 112 2.1 24 21
15* 0.24 0.20 4.9 123 3.7 173 2.8 33 25
17** 0.27 0.23 6.2 155 4.6 205 3.4 39 29
20* 0.32 0.27 8.4 210 5.6 284 4.3 49 35
25* 0.40 0.34 13 317 8.8 399 5.9 68 43
30* 0.48 0.41 18 445 12 592 7.6 87 55
35* 0.56 0.47 24 592 16 713 9.4 108 59
40* 0.64 0.54 31 759 19 1000 11 130 65
50* 0.80 0.68 48 1148 27 1469 16 178 85

*Solid rigid polyurethane foam meets ASTM F1839-08 material specification
**standard cancellous foam used in absolute™ bones

SOLID FOAM BLOCK TOLERANCES:
Foam density ±10%
Block dimensions ±2mm
Sheet thickness ±0.3mm