We recommend using Roman 016901 PRO-999 Rx-35 Drywall Repair and Sealer Primer.
Comes as a Gallon which covers about 350-450 square feet per gallon, depending on the porosity and texture of the surface.
Repairs torn drywall to create a wall surface that can be floated, spackled, painted or hung with wallpaper. Perfect primer for skim coats, spackling, residual paste, popcorn ceilings, contractors flat paint or mud joints. Dries with a slight residual tack, enhancing adhesion of wallpaper or paint. Primer repairs torn drywall. Dries with a slight residual tack and enhancing adhesion of wallcovering or paint. Tin table with up to 4-ounces of colorant.