Typical test standards: DIN 53512 or ISO 4662

This relatively easy test states in percent how much kinetic energy a rubber specimen gives back after an impact trial. From an application-specific point of view this means that a high value points to a good applicability for characteristic vibration technical tasks. Elastomer materials like natural rubber (NR), ethylene-propylene rubber (EPDM) or silicone rubber (VMQ) fulfill this criterion whereas fluorelastomers (FKM) show rather lower values. However, the result of the rebound resilience is also significantly influenced by formula characteristics like the polymer architecture (average molecular weight, ratio of the applied monomers) and the amount of polymer within the formula. In this way this parameter can not only serve to define application-specific properties but can also yield important information about formula characteristics and therefore can limit the selection of formula.