Video Joe Knows demonstrates how to install an inside corner ceiling patch when installing drywall. First, give the paper tape a definitive crease. Then, wipe quick set on the ceiling and the wall. Make sure you get enough material behind the paper tape. Have more quick set on than you need because you can wipe off the excess. Build it up on the edges using a three or four inch knife. Next, apply the tape by pushing it into the corners of the desired area. Finally, wipe off the excess quick set, making sure you don't have air bubbles underneath your tape.
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