Trim Tip for a Perfect Joint
Cutting the right size opening at the tip of the caulk tube is critical for a clean, smooth bead. A large opening will spread too much caulk into the joint and you'll wind up getting it all over the place. It's better to cut the tip too small at first because you can always recut it if necessary. Use a utility knife to cut the tip of the caulk tube at a 45-degree angle so the opening is about the diameter of a wire coat hanger.