Use light stroking movements to bed the tape without dislodging it from the corner. Wipe excess mud from the walls. Step 6: Apply drywall mud to outside corners. If using preformed tape corners ...

On the first day of taping and mudding drywall, have these tools on hand: Our pro installs the outside corner beads with a staple gun that shoots 1-inch, 18-gauge staples with a 1/4-inch crown.