How to Fix Blisters in Drywall Tape – Fast Solutions

Drywall repairs can seem tricky, but fixing blisters in drywall tape is something anyone can do with the right approach. Blisters often happen when moisture gets trapped under the tape, causing it to bubble up. This is common in areas with high humidity or where drywall wasn’t properly prepared. Don’t worry, though. With a few simple steps, you can fix it quickly and easily.

Let’s dive into how to fix blisters in drywall tape so your walls look smooth and professional again.

What Are Blisters in Drywall Tape?

Blisters in drywall tape happen when bubbles form under the tape. This can be caused by several factors, such as moisture, poor application, or using the wrong materials. It’s essential to fix these blisters before they get worse, as they can ruin the appearance of your walls.

Blisters often appear because the tape didn’t bond well with the drywall or the joint compound underneath. If you notice these bubbles, it’s a sign that moisture or air has gotten trapped. Over time, this can lead to bigger issues if not addressed.

Why Do Blisters Happen in Drywall Tape?

Before we talk about how to fix blisters in drywall tape, it’s important to know why they happen. Understanding the cause will help prevent them in the future.

1. Moisture: Excess moisture can cause the drywall tape to lift. This is especially common in areas like bathrooms or kitchens where humidity levels are high.
2. Poor Application: If the drywall tape isn’t applied correctly, it can cause bubbles. This might happen if the tape wasn’t embedded in the joint compound properly.
3. Wrong Materials: Sometimes using the wrong type of drywall tape or joint compound can lead to blistering. For example, using paper tape instead of fiberglass mesh in high-moisture areas can cause issues.

Step-by-Step Guide to Fix Blisters in Drywall Tape

Fixing blisters in drywall tape doesn’t require special skills. With these easy-to-follow steps, you can restore your drywall to its smooth, flawless look.

Step 1: Gather Your Tools

Before you begin fixing blisters in drywall tape, make sure you have the following tools:

• Utility knife or drywall saw
• Joint compound
• Drywall tape (paper or mesh, depending on what you’re using)
• Putty knife or drywall knife
• Sanding block or sponge
• Primer and paint

Step 2: Cut Away the Blistered Tape

The first step in fixing blisters in drywall tape is to carefully cut away the damaged tape. Use a utility knife to gently slice through the blistered tape. Be sure to cut just enough to remove the area that has bubbled up. Don’t cut too deep into the drywall itself.

Step 3: Remove Any Moisture

If the blister happens because of moisture, it’s important to dry out the area before moving forward. You can use a fan to help speed up the drying process. If the area is very wet, use a towel to blot it dry.

Step 4: Apply Joint Compound

Once the area is dry, you’ll need to apply a thin layer of joint compound to the exposed drywall. This layer should be smooth and evenly spread over the area where the tape was removed. You can use a putty knife for this. The compound will fill in any gaps and create a surface where the new tape can bond properly.

Step 5: Reapply the Drywall Tape

Now, it’s time to replace the tape. Apply a fresh layer of drywall tape (paper or mesh) over the joint compound. Be sure to press it firmly into place, ensuring there are no air bubbles under the tape. You may need to apply a little more compound to make sure the tape is fully covered.

Step 6: Smooth the Compound

Once the tape is in place, use your putty knife to smooth out the compound. Try to remove any excess so that the surface is as smooth as possible. This will help reduce the need for sanding later.

Step 7: Let the Compound Dry

Allow the joint compound to dry completely before sanding or applying additional layers. This can take a few hours, depending on the thickness of the compound and the humidity in the room.

Step 8: Sand the Area

Once the compound is dry, use a sanding block or sponge to smooth out the surface. Sanding will help blend the new compound with the rest of the wall, making the repair less noticeable.

Step 9: Apply More Compound (If Needed)

If the repaired area isn’t smooth enough after the first sanding, apply another thin layer of joint compound. Let it dry, then sand again for a smooth finish. You may need to repeat this step a couple of times until the area is perfectly smooth.

Step 10: Prime and Paint

Finally, once the compound is smooth and dry, it’s time to paint the area. Apply a coat of primer to seal the joint compound. After the primer dries, you can paint the wall to match the rest of your room. This will repair the blend seamlessly with the rest of the wall.

Tips for Preventing Blisters in Drywall Tape

While fixing blisters in drywall tape is fairly easy, it’s even better to prevent them from happening in the first place. Here are some tips to avoid blisters in drywall tape:

1. Use Proper Drywall Tape: For high-moisture areas like bathrooms or kitchens, make sure to use fiberglass mesh tape. It holds up better against humidity than paper tape.
2. Proper Application: Make sure the tape is properly embedded in the joint compound. Press it down well and make sure there are no air pockets.
3. Avoid Over-Wetting: When applying joint compound, don’t make it too wet. Use just enough to coat the surface.
4. Ensure Good Ventilation: After applying the joint compound, make sure the area is well-ventilated. This will help the compound dry properly and avoid moisture buildup.

Conclusion

Fixing blisters in drywall tape is simple and doesn’t require professional help. With a few basic tools and materials, you can quickly repair your walls and make them look as good as new. Whether you’re dealing with a small bubble or a larger issue, the steps above will help guide you through the process.

Remember, preventing blisters in drywall tape is all about using the right materials, applying them correctly, and ensuring your space is dry and well-ventilated.

Need Help? Contact Us Today!

If you’d rather leave the repair work to the professionals, don’t hesitate to contact us! Our team is ready to assist with all your drywall and painting needs. Let us help you make your walls beautiful again!

Frequently Asked Question 

Q1. Why does drywall tape blister?

A: Blisters in drywall tape are usually caused by moisture or improper application. Moisture can get trapped under the tape, causing it to bubble up. Applying the tape without enough joint compound or using the wrong materials can also lead to blisters.

Q2. Can I fix blisters in drywall tape without removing the old tape?

A: It’s best to remove the damaged tape before applying the new compound and tape. Leaving old, damaged tape can result in a poor bond and lead to further issues.

Q3. How long should I wait before sanding the joint compound?

A: You should allow the joint compound to dry completely before sanding. This typically takes about 24 hours, but it depends on the thickness of the compound and the humidity in the room. Make sure it’s fully dry before sanding for the best results.