Compression Set Testing can determine the capability of rubber to go back to its original thickness after the prolonged compressive force at a specified temperature and deflection. Because the rubber material loses its capability to return to its original thickness once subjected to compression, this loss of resiliency might decrease the functional performance of an elastomeric gasket, seal or cushioning pad over an extended time.
This is an indispensable device to conduct the compression deflection test. Compression set outcomes are expressed as a percentage figure. The lower the percentage figure, the better the product resists permanent contortion under a given deflection and temperature range.