“Creep” is the technical expression used to describe deformation or flow of a material under a constant force. When paint is applied to a horizontal surface with a brush, lines created by the bristles are visible immediately afterwards. Within a short amount of time, the lines may disappear and leave a perfectly smooth surface. This flow behavior is referred to as “leveling”. When paint is applied on a wall with a brush, paint droplets may suddenly coalesce and appear to slide down the wall.
