The rebound resilience testing instruments are suitable for elastomer and rubber testing as well as for foam testing.
Rebound Resilience Testers
Testing car seats and foams
When calculating the material behavior, this characteristic is typically described by the storage modulus and the loss modulus. A higher storage modulus E‘ indicates a very elastic behavior, while a higher loss modulus E‘ indicates a high viscosity and thus, a strong dampening for faster deformation.
Measurement of the rebound height of a defined ball, which drops from a defined height onto the specimen surface, produces a value that indicates the ratio of the elastic percentage to the visco-elastic percentage of the mechanical behavior of a foam material. Since the viscose percentage is determined by elongation, uncoiling, and balling up processes, this measurement allows us to draw conclusions about the correct sequence of the foaming process. A rebound height that is too low could indicate an incomplete chemical reaction. This method is a simple way to test as part of quality control.