Drywall tape is applied over a layer of joint compound (mud) to reinforce seams between drywall panels, preventing cracks. Specifically for inside corners, the process involves preparing the corner with mud before applying the tape itself.
Applying Tape to Inside Corners
Based on common drywall practices and specific instructions for corner application:
Steps for Taping Inside Corners
According to one method for inside corners, you begin by applying mud to the corners and wiping away any excess. After allowing this initial mud application to dry and sanding it, the tape is prepared and applied.
Here are the steps involved in applying drywall tape to inside corners based on the provided information:
- Prepare the Corner with Mud: Apply a layer of drywall mud (joint compound) to the inside corner where the two drywall sheets meet.
- Clean Excess Mud: Use a putty knife to carefully wipe away any excess mud, leaving a smooth, thin layer.
- Allow Mud to Dry: Let the applied mud fully dry.
- Sand: Once dry, sand the corner smooth.
- Crease the Tape: Take the drywall tape (often paper tape for corners) and crease it lengthwise precisely down the center. This crease allows the tape to bend and fit snugly into the 90-degree angle of the inside corner.
- Apply Tape Over Mud: Position the creased tape into the corner, placing it over the dried mud.
- Embed and Smooth: Use a putty knife or corner tool to firmly press the tape into the corner, ensuring full contact with the surface. Work from the center outwards along the corner to smooth away any air bubbles and embed the tape properly.
Using the putty knife is crucial at this stage to ensure the tape is flat, fully adhered, and free of trapped air that could cause bumps or blisters later. This process creates a strong, seamless finish ready for subsequent coats of mud.
