How to Fix Drywall Dents
- 1). Use a straightedge to remove any loose pieces from the dent if they are present. Failure to do so could be the repair will not last.
- 2). Sand the dented area with sand paper to dislodge any smaller particles that may remain. The grit for the sand paper should be 120 to 150 grit. This also roughens the surface which enables the patch to adhere more effectively. Clean the depression with a brush before continuing.
- 3). Put your joint knife in the joint compound to collect about half a blade's worth of compound on the knife.
- 4). Drag the knife over the dented area in the drywall. Joint compound will start to fill the dent. Hold the handle of the knife so it's positioned at a 90-degree angle. Pass the knife over the dent again so you remove any excess drywall compound.
- 5). Allow the joint compound to dry. If you notice that the joint compound shrinks at all, then repeat the process again.
- 6). Sand the joint compound after it dries, or smooth it with a wet sponge. Prime the dried joint compound and then paint it. You can use the same grit of sandpaper as in Step 2.
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