Brushed Pearl has a set up time that's necessary to create the swirl or cloud-like appearance with the plastic float trowel. Thickness of application and environmental conditions will greatly affect set up time. To determine the setup time, we recommend applying a finger swatch of the Brushed Pearl to an inconspicuous spot on the wall and rubbing it continuously until it begins to "tack up" and create the swirl finish. This will give you an approximate amount of time to wait before using the trowel.
Try your technique on a practice board before you try it on the walls.