Cement Board Drywall Joint Tape

Mesh cement board tape.

Cement board drywall joint tape.

The joint between cement board and greenboard is similar to the joint between two pieces of cement board or two pieces of drywall. Spread joint compound over the length of the tape with a 6 inch drywall knife. Complete the job by piecing in any missing drywall and taping the seams. This video transition between cement board and drywall joint or how to tap drywall and cement board joint or tapping cement board and sheetrock shows the tra.

Cut drywall to fill in between the existing wall or ceiling and the cement board. Push the mortar through the mesh tape and into the 1 8 inch space between the backer board and the drywall. Roll alkali resistant self adhesive. Apply cement board joint tape to all of the joints between sheets adhering the tape with its self adhesive backing.

I cracked the corner of the cement board while cutting it see pic and this tape is the perfect fix. This self adhesive tape is made from the same vinyl coated fabric that is embedded in the face of some cement boards to give the board added strength and crack resistance. Screw the drywall to the studs. I ve use fiberglass drywall tape before and this tape seems to be easier to use than others.

Cement board tape is a patented alkali resistant fiberglass mesh tape and the only tape that should be used for cement applications with dry or thin set mortar. Mix thin set mortar according to the manufacturer s instructions and apply a thin coat over the fiberglass tape with a drywall knife. Gray cement board tape 2 in. Tape and mud the joints.

Run the drywall knife over the mortar to create a smooth finish and remove any excess material. Qep 2 inch x 150 foot cement board drywall tape 99605q is perfect for my cement board project. Very adhesive and very easy to cut with household shears.