The coefficient of friction provides information about the extent to which materials adhere to each other.
The smaller the value, the lower the adhesion.
The sealing effect of O-rings can be negatively affected by excessive adhesion. In addition, the O-ring can also twist due to excessive adhesion. It is therefore always important to ensure that the adhesion between the O-ring and the sealing surface is kept to a minimum.
This applies in particular to dynamic (moving) applications.
To ensure that you always make the right choice of material, we have compiled a table with the most important O-ring materials and their coefficients of friction.