Coefficient of Friction
Once they have migrated to the surface of the coating, wax particles have the ability
to modify the Coefficient of Friction (CoF) of the substrate, imparting
the desired characteristics. This explains why waxes are often classified as "Surface
Conditioner Additives".
The Reduction of Coefficient of Friction (CoF) is illustrated by the equation below:
Two main types of coefficient of friction exist:
a) Static CoF = Fr necessary to have an object starting to move
b) Dynamic CoF = Fr necessary to stop the sliding object (Measure of the
time or of the angle)
The coefficient of friction in coatings can be measured using testers.
Figure 1: Classic CoF Tester in Floor Coatings
