Hardness and Resilience of Polyurethane
Polyurethane elastomers can be formulated to cover a wide hardness range, from 30 Shore A to 85 Shore D.
The D scale is used to measure hardnesses greater than 95 Shore A. Most rubbers fall between 30 and 80 on the A scale and structural plastics begin at 55 on the D scale.
Special formulations of open cast polyurethane can be prepared with resilience values as low as 2% or as high as 75%. Many polyurethane elastomers maintain their resilience with changing temperatures far better than other rubbers through the range from 0șC to 150șC.
The table below illustrates Polyurethane bridges the rubber-plastic hardness range and therefore is suitable for a wide variety of applications.
Hardness Scales |
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Send mail to : sales@polyurethane-1.com with questions about polyurethane.
Copyright © 2001 Griffith Polymers Inc. Last modified: October 01, 2002