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Fatigue resistance and Durability

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Fatigue resistance and Durability

It is self-evident that the properties named have to be maintained over a long period of time, also in case of intensive use. There are various methods available to test this. We call it a static fatigue test if the foam is burdened over a long period and a dynamic fatigue test if the foam is repeatedly compressed. A dynamic fatigue test consists of compressing the foam 80,000 times successively with a 75-kg weight. Afterwards, the height and loss of hardness are measured. In any case, the higher the specific gravity of the foam, the better the fatigue properties.

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