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How to Apply Joint Compound to Drywall Corners

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DIFFICULTY RATING: (3 out of 5 - Moderate)

A professional drywall finish has smooth seams and corners. A few tricks will help you to finish your drywall corners like a pro.
Step 3: Feather and sand the next layers
When the compound is dry, sand it with a 120-grit sandpaper attached to a wide sanding block. Wipe away the dust and apply a second coat of compound using an 8-inch compound knife. Feather the compound out even further on the second coat. Once the second coat is dry, sand again using the 120-grit sandpaper. Wipe down the wall and apply a third coat of compound, again feathering out beyond the edge to make a completely smooth finish. Once it is dry, sand the surface with a 200-grit sandpaper so that it is ready for priming and finishing.
Feather out the next two coats of joint compound with an 8-inch joint compound knife.

Step 3 of 5 (View Full Step by Step)


120 Grit sandpaper (Buy) 200 Grit sandpaper (Buy)
4-Inch finish knife (Buy) 8-Inch joint compound knife (Buy)
Adhesive drywall tape (Buy) Drywall knife (Buy)
Joint compound (Buy) Metal corner (Buy)
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Text by Deb Alden
BobVila.com






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