Omar Khalid
Plastic corner beads are used to create a smooth, even seam and an attractive finish where two pieces of drywall meet. There are several ways to attach plastic corner beads, including spray adhesive, staples, and mudding. Mudding involves using a compound to attach the bead to the drywall and is a common method for creating strong, durable corners. Some people also choose to tape their corner beads for added strength, especially in high-traffic areas. This paragraph will discuss the different ways to tape plastic corner beads and the benefits of each method.
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What You'll Learn
Using spray adhesive
The process involves applying spray adhesive to both the drywall and the corner bead. It is recommended to use a spray adhesive specifically designed for corner beads, such as Trim-Tex 847 or 3M Super 77. When spraying, maintain a distance of 6 to 10 inches, and keep the spray moving to avoid excessive buildup.
After applying the adhesive, position the corner bead onto the drywall. Use a pressuring tool or the handle of a taping knife to press the bead firmly into place.
Some people choose to combine the spray-and-staple method for added strength. If you wish to do so, finish by stapling the corner bead every 6 to 8 inches. This ensures a strong bond between the corner bead and the drywall.
While spray adhesive is a popular choice, some people may prefer other methods, such as using contact cement or mud (drywall compound), due to concerns about messiness or indoor air quality. Ultimately, the chosen method depends on personal preference and the specific requirements of the project.
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Stapling
While stapling is a common method for installing metal corner beads, it is also possible to staple plastic corner beads. However, stapling plastic corner beads is not as common as using spray adhesive.
If you choose to staple plastic corner beads, you can use a T50 stapler with 3/8" staples. Alternatively, Trim-Tex sells a 1/2" divergent pneumatic stapler. It is recommended that you staple every 6 to 8 inches along the corner bead.
To prevent the corner bead from bulging outward between staples, you can try stapling one side of the bead, and then stapling the corresponding spot on the other side, adjusting the bead to ensure it is tight against the drywall.
Some people also choose to use staples in conjunction with spray adhesive to attach plastic corner beads. First, apply the spray adhesive, such as Trim-Tex's 847 Spray Adhesive, to the drywall and the corner bead. Then, staple the corner bead in place.
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Mud set
To begin, cut the mud set bead to the desired length, ensuring it is straight and level. Then, apply a layer of joint compound or mud to the drywall corner. You can use a 4-in-1 Mud Hopper, a knife, or a compound applicator tube for this step. The mud legs of the bead should be firmly pressed into the compound, creating a strong bond. The mud legs are designed with Trim-Tex's patented Mud Lock Technology, which consists of a series of hooks that grip into the joint compound, latching the bead onto the surface.
After applying the mud, press the bead into place with a roller tool or the end of a taping knife. Excess mud will squeeze through the perforations, which helps level the bead and minimizes the amount of mud needed for the setting coat. Wipe away this excess mud and allow the bead to set.
Once the bead is secure, apply a fill coat. For subsequent coats, use topping or lightweight ready-mixed mud for easier sanding and a smooth finish. Properly feather the edges of your compound to avoid visible seams and create a seamless finish.
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Fast edge
While paper tape is flexible, has a lot of uses, and is cheaper, Fast Edge Roll is a better option for the specific scenarios described above.
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Paper tape
Taping plastic corner beads with paper tape is a common method for finishing inside corners of drywall. Paper tape is a traditional method that has been used for decades by professionals and DIY enthusiasts alike.
Paper-faced corner beads are simpler to install than metal corner beads and are less prone to cracking and chipping. Before installing a paper-faced corner bead, it is important to wet the paper covering on the bead to improve adhesion and reduce wrinkles. This can be done by simply spritzing the corner wall beading with water before sticking it to the wall.
To install the paper tape, start by spreading a thick layer of all-purpose joint compound on both sides of the corner. Avoid using lightweight joint compounds as they do not adhere as well. Embed the paper tape into the joint compound, ensuring that you remove the correct amount of compound from your tape coat. Too little compound will result in buildup, while too much will cause the tape to bubble up and peel.
After embedding the paper tape, use a putty knife to remove any excess joint compound and smooth out the surface. Allow the first coat of joint compound to dry, and then apply a second coat. Once the second coat is dry, you can sand the corner with drywall sandpaper for a smooth finish.
While paper tape is a popular choice, it is important to note that it is susceptible to mould, mildew, and tearing. As a result, vinyl inside corner beads may be a more durable and cost-effective option in the long run, despite their higher initial cost.
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Frequently asked questions
Most professionals use spray adhesive to attach plastic corner bead.
Other methods include using staples, cement, or glue. Mud Set Beads are another option that are known for their durability.
Vinyl corner bead holds up better over time than metal corner bead, which is prone to denting.
You will need a drywall knife, tin snips, a roller tool or taping knife, and a rubber mallet.
