Dipping and removing too quickly can cause this. Remove at a rate of 1” every 5 seconds. If experiencing runs or sags when spraying, move can further away from the surface and apply a lighter coat. Sagging and dripping can also be caused by high humidity, high temperatures, windy conditions, or direct sunlight. Ideal conditions are low humidity, 70 degrees, little to no air movement in a well-ventilated area.