To sand drywall, lower high spots by rubbing with an open-mesh sanding screen, even out patches or joints further with the rough side of a drywall sponge, and then sponge the entire area, feathering the edges onto the surrounding drywall. Keep the sponge moist but not sopping wet.Continue Reading
Use a piece of open-mesh sanding screen to remove high areas, allowing quicker wet sanding.
Soak a drywall sponge in a bucket of clean water. Wring it out slightly so it is not dripping but is still very wet.
Rub the rough side of the drywall sponge in a circular motion over the previously sanded high areas to even them further and remove drywall dust.
Turn the sponge over, and wipe the patch or joint from the center out, feathering the edges into the surrounding drywall. Do not use too much pressure. Rinse and re-wet the sponge as necessary. Avoid making more than two passes over any area.
Let the joint compound and surrounding drywall dry completely before priming or painting.