Butter taping compound into inside corners and joints.
Center tape over joints and press down into fresh compound.
Remove excess compound.
Tape joints of gypsum board above suspended ceilings.
First coat (Level 2):
Use taping or all-purpose drying-type compound.
Immediately after bedding tape, apply skim coat of compound
and allow to dry completely in accordance with manufacturer's instructions.
Apply first coat of compound over flanges of trim and accessories, and over exposed fastener heads and finish level with board surface.
Second coat (Level 3):
1. After first coat treatment is dried, apply second coat of compound over tape and trim, feathering compound 2 inches beyond edge of first coat.
Third coat (Level 4):
After second coat has dried, sand surface lightly and apply
thin finish coat to joints, fasteners and trim, feathering compound 2 inches beyond edge of second coat.
Allow third coat to dry. Apply additional compound, and touch- up and sand, to provide surface free of visual defects, tool marks, and ridges, and ready for application of finish.
Skim coat (Level 5):
1. Apply skim coat of topping or all-purpose drying-type compound overexposed surfaces of gypsum board.
After skim coat has dried, touch-up and sand to provide surface free of visual defects, tool marks, and ridges, and ready for application of finish.
Water-Resistant Gypsum Board: Treat fastener heads and joints with
setting-type joint compound.
1. For joints to be covered with tile, apply tape and joint compound bedding coat and skim coat only; do not apply finish coats.
Do not crown joints or leave excess compound on panels.
Remove tool marks and ridges.
For fastener heads to be covered with tile, apply one coat of