Can you apply Durabond or Easy Sand about 1" thick and have it be stable? I was unable to pull out the corner bead at all. It's really jammed in there and hard to get any grip on it.
If the walls on either side of the smashed corner bead are flat and not bulging out, you can just use Durabond to fill in each side. If you are worried about the Durabond sticking to the metal, you might try drilling 6-10 1/4" holes into the corner bead. On your first coat of Durabond, use a rubber kitchen spatula to push the Durabond into the holes before using your spackle knife to apply the Durabond onto either side. When you mix the Durabond, make sure that the final mix is thick enough so that it doesn't look like it will move or sag downward when you get a big glob of it on your spackle kinife and hold the knife blade vertical to the floor (so that the Durabond would have the best chance of falling off the knife if it were too thin). This way you will know that the Durabond will not sag very much after you apply it onto the corner.
When you are done spackling the corner, clean out the remaining Durabond onto a paper bag or something you can throw out when the Durabond gets hard. Check the leftover Durabond about 5 minutes or so after the number of minutes the bag says (Durabond 25, 60, 90) to see if it has become hard. When it has become hard, but not yet dry, take your spackle knife and see if the Durabond on the corner bead is flush with the walls. If there is Durabond bowing out from the repair, carefully use your spackle knife to "shave" the excess Durabond off so that the repair is either flush or concave with each wall. This helps you avoid any sanding.
The next day, after the Durabond has completely dried, use your spackle knife to shave off any little nubs that you may have missed. If you find that the Durabond has pushed out a little overnight, you might have to sand until the repaired area is flush with the walls.
When you have done that, put a 2nd coat of Durabond over the repair. If you get a small ridge on top of the corner, you might be able to let this harden and dry before shaving it down with your spackle knife. If a 3rd coat of Durabond is needed, go for it. Just make sure that you do not overfill with Durabond as it is very difficult to sand.
If the walls on either side of the corner bead cannot be made flat when dragging a long straight edge across, you might want to use a multi-tool to cut out the damaged section out so that both walls are or can be made either flat or concave before applying Durabond.
It takes a bit to get used to using Durabond, but when you do, you will be able to make rock solid repairs.
IMPORTANT! After mixing and using Durabond, clean up any tools or mud pans soon before any remaining Durabond hardens and dries. I like to use a green Scotch Brite pad under running water to do this. If you fail to do this cleaning, you will discover why I said this.
siffleur
