Comparison between Compression test vs Stress relaxation test
Compression test data shows the amount of applied force (N) at the moment the test sample is compressed. Stress relaxation data uses the same test set up as the compression test, but the data is taken after a certain amount of time has passed (such as three minutes). With our soft and compliable materials, the amount of force tends to ease over time. In the long-term, it is more accurate to consider the data from the stress relaxation test since the force is much less than initial compression force. However, in some cases where there are delicate components that can only accept up to a specified amount of force, the peak compression force from our compression test should be considered.