Top 7 Mesh Drywall Tape Problems and Solutions

Addressing the Top Mesh Drywall Tape Problems: Solutions for Flawless Finishes

Mesh drywall tape is a product used to cover the seams between sheets of drywall to create a smooth, seamless surface for painting or wallpapering. Mesh drywall tape problems are not uncommon and can impact the quality of your drywall project. It is made from a fiberglass material that is woven into a fine mesh. While mesh drywall tape has its advantages, including ease of application and strength, it is not without its problems. This article explores the various issues associated with mesh drywall tape in drywall installation, including adhesion problems, durability issues, cracking, visibility after application, and difficulties in achieving a smooth finish. We will also touch upon the appropriate use cases and provide tips for overcoming these problems.

Adhesion Problems

Mesh drywall tape requires the use of a joint compound (also known as mud) to adhere properly to the drywall. One of the primary problems with mesh tape is that it can sometimes fail to stick correctly, leading to bubbling or peeling. This issue is particularly prevalent in environments with high humidity or on surfaces that are not clean and dry. As a Professional Painter, I can attest to the common issues encountered with mesh tape failure. One prevalent cause is the failure to properly prepare the surface before applying the tape. Even though mesh tape is self-adhesive, it requires a textured surface to adhere effectively, especially on surfaces with a sheen. Without proper sanding beforehand, the tape lacks the necessary “bite” to grip the surface securely.

Solution: To improve adhesion, ensure that the drywall surface is completely clean and dry before applying the tape. Apply a thin layer of joint compound before laying down the tape, then press it firmly in place. After that, apply another layer of compound over the top and allow it to dry completely.

Durability Issues

Although mesh tape is generally strong due to its fiberglass composition, it can sometimes be less durable than its paper counterpart, especially in high-traffic areas or places with frequent temperature changes. This reduced durability can lead to cracking over time.

Solution: For areas that require extra durability, consider using paper tape or a combination of mesh tape with a setting-type joint compound, which dries harder than the ready-mixed variety.

Cracking

Another significant reason for mesh tape failure is the inadequate preparation of cracks. Cracking is another issue that can arise with mesh drywall tape, often due to improper application or the natural settling of the house. Cracks can develop over the tape’s surface or where the tape meets the drywall.

Solution: To minimize cracking, ensure that the drywall tape is firmly pressed into the joint compound and that there are no air bubbles. Apply multiple thin layers of the compound, allowing each layer to dry completely before applying the next. This method reduces the risk of cracking caused by the compound shrinking as it dries. When repairing cracks, it’s essential to “V” out the crack using a razor knife or the sharp end of a 5-in-1 tool. This slight gouging creates a channel for the joint compound to adhere to, ensuring a strong bond and preventing future cracking.

Visibility

After Application Mesh tape can sometimes remain visible through the joint compound after it has dried, particularly if the tape was not adequately covered or if the compound has been applied too thinly.

Solution: To avoid this problem, apply enough joint compound to completely cover the mesh tape, typically requiring two to three coats. Sand between coats to ensure a smooth and level finish.

Difficulties in Achieving a Smooth Finish

Achieving a smooth finish over mesh tape can be challenging, especially for those who are inexperienced with drywall work. The mesh texture can show through the joint compound if it is not applied correctly.

Solution: Practice proper application techniques, such as using a wide drywall knife to spread the joint compound evenly over the tape. It may also be helpful to use a lightweight compound for the final coats, as it is easier to sand and smooth.

Incompatibility with Certain Compounds

Mesh tape is not compatible with all types of joint compounds. For example, it may not adhere well to certain fast-drying or lightweight compounds, leading to issues with bonding and durability.

Solution: Check the compatibility of the mesh tape with the joint compound you plan to use. For best results, use a compound that is recommended by the tape manufacturer or one that is known to work well with fiberglass mesh.

Moisture Sensitivity

Mesh tape can be more sensitive to moisture than paper tape, leading to problems such as mold growth or tape deterioration in high-moisture areas like bathrooms or kitchens.

Solution: In high-moisture areas, consider using a mold-resistant tape or applying a moisture-resistant primer before taping. Ensure adequate ventilation to reduce humidity levels.

Top 5 Drywall Joint Tape Brands Pros and Cons

The best drywall tapes vary depending on the specific needs of your project, but among the top-rated ones are:

Brand	Type	Pros	Cons	Price per Roll
Duck Brand 282083	Fiberglass Mesh	Self-adhesive, strong, easy application, good for novices	May damage drywall if removed	$17.48​​
LYLTECH Drywall Joint Tape	Fiberglass Mesh	Affordable, self-adhesive, suitable for taping and patching	Unraveling issues, weaker adhesive	Similar to Duck Brand, estimated $17
Saint-Gobain ADFORS FDW6581-U FibaTape	Fiberglass Mesh	Easy application, mold and mildew resistant, extra strong	N/A	Price varies, estimate around $20-$25
FibaFuse Paperless Drywall Tape	Glass Mat	Superior crack resistance, mold-resistant, versatile	Does not hold a crease as easily	Price varies, estimate around $10-$15
USG Drywall Joint Tape	Paper	Similar to Duck Brand, estimate $17	N/A	Price varies, typically less than $10

Drywall Thickness Considerations for Tape Selection

When selecting drywall tape, consider the drywall thickness since building codes often dictate this based on the application area. Common thicknesses include:

• 1/4-inch: Ideal for bending or covering slightly curved surfaces.
• 1/2-inch: Standard for most interior walls and ceilings.
• 5/8-inch: Used for areas requiring fire resistance, such as ceilings or garage walls.
• 3/4-inch: Often utilized for fireproofing steel-framed walls and for heavier-duty applications.

Choose the tape that complements the drywall thickness and meets the specific requirements of your project for optimal results.

Drywall Thickness	Ideal Usage	Tape Considerations
1/4-inch	Bending/curved surfaces	Flexible tape, mesh for adaptability
1/2-inch	Standard walls/ceilings	Standard paper or mesh, depending on seams
5/8-inch	Fire-resistant areas	Fiberglass mesh for enhanced safety
3/4-inch	Fireproofing steel-framed walls	Thicker, durable tape for heavy-duty needs

Steps for Successful Drywall Mesh Tape Application

1. Prepare the Surface: Begin by sanding the area to be repaired to create a textured surface for the mesh tape to adhere to effectively. This step ensures proper bonding and prevents tape failure.
2. Repair Cracks Properly: Use a razor knife or the sharp end of a 5-in-1 tool to gouge out cracks slightly, creating a channel for the joint compound. This prepares the surface for better adhesion and prevents future cracking.
3. Select the Right Joint Compound: Choose a setting-type joint compound (such as Durabond) to pair with mesh tape for optimal results. This type of compound provides superior strength and durability, reducing the likelihood of tape failure.
4. Pre-Fill Cracks if Necessary: Before applying mesh tape, pre-fill cracks with paint, caulk, or glue if they have a history of movement. This additional step reinforces the repair and minimizes the risk of future issues.
5. Apply Mesh Tape: Place the mesh tape over the repaired area, ensuring it is fully embedded in the joint compound. Press firmly to secure the tape in place and eliminate air bubbles.
6. Cover with Joint Compound: Apply a thin layer of joint compound over the mesh tape, completely covering it. Use a drywall knife to spread the compound evenly and smooth out any excess.
7. Smooth and Feather Edges: Feather the edges of the joint compound to blend it seamlessly with the surrounding drywall. This creates a smooth transition and reduces the need for extensive sanding later on.
8. Allow Proper Drying Time: Allow the joint compound to dry completely according to the manufacturer’s instructions. Rushing this step can lead to premature cracking or tape failure.
9. Sand and Repeat as Needed: Once the compound is dry, sand the repaired area gently to smooth out any imperfections. Repeat the process with additional layers of compound if necessary to achieve a flawless finish.
10. Inspect and Touch Up: After sanding, inspect the repaired area closely for any remaining imperfections. Touch up as needed with additional joint compound and sand again until the repair is seamless.

Following these steps systematically ensures a successful drywall mesh tape application, resulting in strong, long-lasting repairs that withstand the test of time.

Additional Points to Consider for a Successful Drywall Mesh Tape Application

Consideration	Description
Temperature and Humidity Control	Control temperature and humidity levels in the work area to ensure optimal drying and adhesion conditions.
Use of Corner Bead	Consider using metal or vinyl corner bead for added reinforcement, especially on outside corners.
Priming Before Painting	Apply a coat of primer to seal the repaired area before painting to improve paint adhesion.
Applying Multiple Thin Coats	Apply multiple thin coats of joint compound, allowing each layer to dry completely for a smoother finish.
Tool Maintenance	Keep drywall tools clean and in good condition to ensure smooth application of joint compound and mesh tape.

Conclusion

While mesh drywall tape offers many benefits, including ease of application and strength, it is not without its problems. By understanding these issues and knowing how to address them, you can improve the likelihood of achieving a smooth, durable finish. Remember, the key to successfully addressing mesh drywall tape problems and achieving flawless drywall finishes lies in proper preparation, meticulous application, and patience. The path to impeccable results is paved with your skill, patience, and unwavering attention to detail.