Spread and smooth cementing material over tape, using trowels or floating machines to blend joints with wall surfaces

Press paper tape over joints to embed tape into sealing compound and to seal joints and apply additional coats to fill in holes and make surfaces smooth

Sand or patch nicks or cracks in plasterboard or wallboard

Mix sealing compounds by hand or with portable electric mixers

Work on high ceilings, using scaffolding or other tools, such as stilts

Select the correct sealing compound or tape

Countersink nails or screws below surfaces of walls before applying sealing compounds, using hammers or screwdrivers

Install metal molding at wall corners to secure wallboard

Sand rough spots of dried cement between applications of compounds