Hyde Job Guides

How to Finish a Reinforced Outside Drywall Corner

Run a folded corner tool down the compound on an installed outside corner to shape it, then ease the edges with a flat knife. Finish with thin, feathered coats.

What you need

• Model 09425MAXXGRIP® Outside Corner Tool, 4” $24.45 each$16.63 each at 100 or more

  Add

• joint compound from the corner bead maker
• outside corner bead already installed
• fine sanding sponge
• primer

Steps

1. Check the corner bead is straight, firmly fastened and the walls beside it are supported.
2. Read the bead and compound labels for coats and drying state.
3. Clean the tool channel and wing edges. A dried crumb scratches the corner.
4. Load an even amount of compound on both faces.
5. Dry-fit the tool with a wing on each face, centered on the nose.
6. Pull once in a single steady pass, and overlap only into workable material.
7. Ease the outer edges with a flat knife, then let the coat dry before inspecting.
8. Repeat with thin coats, sand lightly, and prime.

Tips

• Never drag the tool back through compound that has started to skin.
• If one face has much more compound than the other, correct the loading before pulling.
• The tool's wings define its pass, not the coat width. Feather the outer edges with a knife.
• Squeezing harder digs the wings in without straightening the corner.

Watch out

Questions about the right tool for your job? Email cs@hydestore.com or call 508-916-6442.