The term Blocking is used to describe the fact that freshly painted surfaces
stick when pressed together.
Reduction of this blocking effect can be
reach by integrating surface modifying additives such as
wax in the paint formulation.
Blocking depends on the surface energy, the coefficient of friction and the topography
of the paint surface.
The use of wax will produce a slight roughening
of the surface and help to decrease the coefficient of friction which are critical
parameters to control blocking.