When this happens air gets trapped under the tape. It results from not putting enough joint compound in the drywall seams before applying the tape, and then not pressing firmly enough to release the trapped air after applying the tape. This is a common problem for those who don’t have a lot of experience with drywalling. The first is because there’s air trapped underneath the paper tape you’ve used. There are two main reasons your drywall mud might have bubbles in it. Why Does My Drywall Mud Have Bubbles in It? You probably already have most of these on-site. If you have bubbles in your drywall mud due to air trapped in the paper tape, you don’t need many tools to fix the issues. What Tools Will You Need to Fix the Bubbles in Drywall Mud? Next, add a second coat of joint compound that’s about 1/16th thick, let it dry, and then sand until smooth. You’ll then need to allow the mud to fully dry, which will take about 24 hours. Do this until you’ve embedded the paper in the joint compound and all trapped air is released.Īfter you’ve fixed the bubbles in your drywall mud, you can finish the job by applying a 1/16th inch layer of joint compound over the drywall tape.Now, starting at the top, run your drywall knife over the tape using even strokes.Place the tape over the freshly applied joint compound. Tear a piece of tape to fit the section.(This layer should be slightly wider than the width of the tape.)
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