I/41fc2lbNMBL.jpg' alt='Plaster Crack Repair Tape' title='Plaster Crack Repair Tape' />How to Repair Cracks and Holes in Drywall how tos. Watch video of this step. If the crack extends through the seams paper tape, or if the tape has pulled loose from the wall, use a razor knife to cut the tape about 6 to 1. Remove the tape but be careful not to tear away the drywalls paper covering. Scrape away any loose compound, and use a razor knife or drywall saw to expand the crack through the wall surface into the stud cavity image 3. Avoid removing solid, well adhered compound beyond the crack itself. Fill the crack with new drywall compound, and apply a thin coat of compound to the wall surface where the old tape was removed. While the compound is still wet, place a strip of fiberglass tape over the seam, bridging the gap between the ends of the existing tape image 4. All products below are listed alphanumeric order. These listed products can be narrowed by using the search filters to the right. These filters cover the following. Use a putty knife to gently flatten wrinkles and to bed the tape into the compound. After the compound dries, add a second thin coat of compound over the taped area. Cover the tape and taper or feather the edges of the new compound onto the surrounding wall surface image 5. How to Repair Drywall Tape That Is Separating from Your Walls. If you have drywall tape separating from your wall, it is best to take down the peeling tape. Many people believe that plaster wall repair is an oxymoron. They feel that plaster walls cannot be repaired. It is true that plaster walls can be difficult to. Plaster Crack Repair Tape' title='Plaster Crack Repair Tape' />Drywall compound needs to be applied in multiple thin layers because thicker layers are too difficult to smooth out and will eventually cause cracking. Arabian Nights Comics Pdf'>Arabian Nights Comics Pdf. Ppf O Matic Patch Xbox 360 more. When the second coat is thoroughly dry, sand lightly to smooth out any bumps. Next, use a wide 8 to 1. Try to blend this coat as seamlessly as possible onto the wall surface. After it dries, sand lightly, wipe away dust and repaint the entire area.