Tear resistance

What is the tear resistance?

The tear resistance indicates the force a rubber can withstand when pulled apart after the structure of the rubber has been weakened by an incision. The drawing direction is perpendicular to the incision. The unit is N/mm. There are two methods of determination.

In the strip test according to DIN 53507, a cut, clearly defined strip is pulled apart in opposite directions. The force that must be applied is specified in N/mm, i.e. as a function of the specimen thickness.

With the angle test according to Graves DIN 53515, on the other hand, a cut-in angled sample is used.