Then put a few cups into a drywall pan and use your 6-in. knife to spread it. Spread a thin coat of joint compound over the area. Then scrape it off, leaving just enough to fill the recesses and ...

it’ll harden in your pan. Apply setting-type compound to areas that need a deep fill, like the first coat over a corner bead. Once it hardens, you can apply a second coat of regular drywall ...