Begin by placing the end of the tape into the corner of the area to be caulked, pressing down firmly. While doing so, stretch the roll parallel to the crease you will be caulking, allowing a gap between the crease and tape of about an 1/8 inch.
Tip 1: The space between the edges of the tape on either side of the crease should total the width of a pencil.
Tip 2: To ensure a tight seal between tape and surface, run a credit card across with some pressure. Then, double check by running your fingers over it.