Bill wrote:
Markem wrote:
On Tue, 10 Aug 2010 01:50:27 -0400, wrote:

Having put up most of my drywall, I have left a few gaps that are
too big (for instance, next to my plastic electrical boxes). At
least one of these gaps is at least 3/8" wide (and 4" long). My
current plan is to "glue in" a small block of drywall using my
heavier joint compound, and then build that up--allowing it to dry
in between layers. Is this approach likely to be successful (w/tape?)?

Thank you for your thoughts.



The dry 90 minute compound, 3/8 caulking backer and glass mesh tape.
That is what I would do, hope that helps.

Mark

I am obviously not a professional. I'm sorry, I can only guess what
you mean by "3/8 caulking backer". Maybe you could you break it down
into steps?


Tried and true Bill - just mud in a tape surround with the old basic paper
tape. Let it dry overnight. You will find it to be tight as a drum head in
the morning. Don't worry about the 3/8 gap - that's not a huge gap.
Proceed from there to simply taper the new tape into the surrounding
sheetrock, as you would any other joint. It will work and it will hold up
forever. Trust me...

--

-Mike-