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highres604 · 05-28-2012, 09:04 AM

Yes that is metal corner bead in an inside corner. Its not a 45 degree corner though. More like 22.5 degrees.

I'm happy to report that I fixed it and it looks good! I used the pre-mixed, low dust Syncko brand compound and regualr paper tape.

First I sanded it all out, wiped it down with a damp cloth. Then I filled the giant gap with a liberal amount of compound making sure to put plenty along either side of the gap as well.
Then I got my paper tape, ran it under the tap and folded and squeezed out excess water. Applied it to fresh compound and used a corner drywall tool thing to gently push and shape the corner. Once I was sure that the tape was 100% touching the compound, I let it set for a bit (1.5-2 hrs).
I returned and applied a very thin layer of compound to the same areas. This part was mainly to hide the tape lines. Flatten it out as best I could without using too much pressure.
Let it set overnight, then I sanded it with super fine grit. Looks pretty good now. Not Mike Holmes awesome, but WAY better than I thought I could do.

Lessons learned from this:

the compound is VERY forgiving. This is the first time ive used actual compound and it is so much different that that small hole patch stuff you buy.
Also, a bigger trowel is a must. I used a 6 inch one this time and was amazed at how much flatter, smoother I could apply this stuff.

I haven't had a chance to take pics of the finished area, but I will and will post them for anyone interested.

05-28-2012, 09:04 AM	#19
highres604 I am Hook'd on RS Join Date: Mar 2005 Location: Vancouver Posts: 71 Thanked 21 Times in 12 Posts Failed 3 Times in 2 Posts	Yes that is metal corner bead in an inside corner. Its not a 45 degree corner though. More like 22.5 degrees. I'm happy to report that I fixed it and it looks good! I used the pre-mixed, low dust Syncko brand compound and regualr paper tape. First I sanded it all out, wiped it down with a damp cloth. Then I filled the giant gap with a liberal amount of compound making sure to put plenty along either side of the gap as well. Then I got my paper tape, ran it under the tap and folded and squeezed out excess water. Applied it to fresh compound and used a corner drywall tool thing to gently push and shape the corner. Once I was sure that the tape was 100% touching the compound, I let it set for a bit (1.5-2 hrs). I returned and applied a very thin layer of compound to the same areas. This part was mainly to hide the tape lines. Flatten it out as best I could without using too much pressure. Let it set overnight, then I sanded it with super fine grit. Looks pretty good now. Not Mike Holmes awesome, but WAY better than I thought I could do. Lessons learned from this: the compound is VERY forgiving. This is the first time ive used actual compound and it is so much different that that small hole patch stuff you buy. Also, a bigger trowel is a must. I used a 6 inch one this time and was amazed at how much flatter, smoother I could apply this stuff. I haven't had a chance to take pics of the finished area, but I will and will post them for anyone interested.