In this video

While the caulk is still wet, carefully remove the painter's tape. Start at one end and pull the tape slowly and steadily, at a 45-degree angle away from the fresh caulk line. This will create a sharp, clean edge. If you wait for the caulk to dry, removing the tape can pull the caulk out of the joint, ruining your work. Remove both strips of tape to reveal your perfectly finished, professional-looking caulk bead.