RickyMcGrath Posted April 22, 2015 Report Share Posted April 22, 2015 I recently cut a channel in the drywall in my laundry room about 2" wide over 6' long to reroute the electrical. I wasn't sure of which method I would use to patch it and didn't really think through the process. Well, I was using a can of DAP spray foam elsewhere and I realized I had over half a can left and that stuff doesn't store well after initial use so I decided to carefully fill the drywall in to create a backing for joint compound. I didn't completely full the wall, but I troweled it just right to give some support for the joint compound and I gotta say, it's better than anything else I may have used before. It grabs the gypsum nicely, provides great support and took the joint compound MUCH better than I imagined. I had a spot or two that expanded more than I anticipated but I let it dry and with a sharp knife, cut a shallow V groove into the foam to make room for joint compound. I think I have a new favorite method for certain drywall patches. 1 Quote Link to comment Share on other sites More sharing options...
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