The resistance of a material to wearing or removal.
Another essential characteristic of a seal is abrasion resistance, which is the resistance of a material to wearing or removal. Abrasion resistance is calculated as the loss of weight compared to the original item.
Unlike sheer stress, which occurs at a given time, abrasion occurs over time, due to the rubbing between mating surfaces.
In an abrasive resistance test, a specimen rubs over a sandpaper roll for a given period of time. The specimen’s weight is measured before and after the test and the difference between the measurements is expressed in percentage. The lower the value, the better the abrasion resistance of the elastomer.