Typical Physical Properties*

Hardness to match a broad range of requirements - and highly elastic over the entire range	Shore Hardness	50A to 80D
Abrasion resistance to withstand wear and provide long service life	Taber Abrasion, mg loss (ASTM D-4060) NBS Abrasion, % rubber std.	as low as 3.5 mg/1,000 cycles as high as 1,020%
Tensile strength to perform under high mechanical stresses	Tensile strength (ASTM D-412) Ultimate Elongation (ASTM D-412)	< 100 psi - > 8,000 psi 2% - 750%
Dynamic load-bearing ability		Up to 70-90% higher than rubber wheels of comparable hardness
Superior tear resistance	Split tear strength (ASTM D-1938)	Up to 350 lbf/in
	Die C tear strength (ASTM D-624)	Up to 805 lbf/in
Corrosion resistance		Withstands attacks by many oils, greases, chemicals and solvents
Weathering and aging resistance		Withstands harsh environmental conditions (e.g., ozone, UV and high-energy radiation) Specific grades also resist bacterial attack Can achieve over 80% tensile strength retention in humid aging (70°C, 100% RH, 2 wks) and over 50% tensile strength retention in steam aging tests (121°C, 15 psi steam, 24 hrs)
From excellent shock absorption to outstanding resilience	Rebound, % (ASTM D-2632)	< 10% - 70% Provides extensive vibration damping and sound attenuation capabilities
Lighter weight than traditional materials	Specific gravity, g/cc	Typically 1.1-1.26
Coefficient of friction	Decreases as the hardness of the polyurethane material increases	< 0.2 to > 0.9 against steel
Flexible over a wide temperature range	Some materials can remain flexible below -60°C