My question is whether or not I have to sand away the progress I have compounded up to in order for the fix to be done. I am having issues with getting the joint compound to adhere to both a metal and especially vinyl outside corner beads. Which could have been prevented if I taped the corner before layering it up as much as I originally thought was the method. Should I attempt to stick with what I am doing? Or will this continue to fail and I need to chip away all progress to start anew? Or is there a way I can still attempt to tape and blend even though it is at a leveled mark of build up matching where I was patching? (Location is bathroom window outside corners)
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The instructions for the Phillips gripSTIK 8 ft. x 1-1/4 in. Vinyl Corner Bead say it can be installed with spray adhesive and staples or without spray adhesive if the staples are spaced more closely, 6 inches apart. I didn’t want to use the spray adhesive because it has to be sprayed on the drywall as well as on the corner bead, which would put a lot of it into the indoor air, so I used staples alone. When it came time to mud over the corner bead, though, some sections of the edges, between staples, bulged out a little, making them very difficult to mud over. A few reviews on HD noted the same problem; one said he thought it was because his staples went in too deep. Other than that fault, which I haven’t tested, are there any tricks to getting the vinyl corner bead’s edges to stay flat against the drywall without adhesive? If you believe adhesive is mandatory, is there a brush-on adhesive that would work well?
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