Sofia Martinez
There are several methods to install plastic drywall corner beads, including spray-and-staple standard vinyl, Mud Set, and Fast Edge®. The standard way to attach plastic corner beads is with spray adhesive, which minimizes slipping during expansion. Mud Set Beads are drywall corner beads made from high-impact, rigid vinyl, featuring Trim-Tex's patented Mud Lock Technology. Mud Set Beads are also strong enough to withstand daily wear and tear as well as more intense impact.
Characteristics and Values
| Characteristics | Values |
|---|---|
| Installation Method | Spray-and-staple standard vinyl, Mud Set, or Fast Edge |
| Materials | Plastic, vinyl, drywall, nails, staples, glue, cement, mud/joint compound |
| Tools | 4-in-1 Mud Hopper, knife, compound applicator tube, roller tool, taping knife |
| Advantages | Strong bond, minimised slipping during expansion, strong durability, reduced maintenance costs |
| Disadvantages | Potential messiness, potential discoloration due to adhesive bleeding |
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What You'll Learn
Using spray adhesive
Plastic and vinyl corner beads can be installed using spray adhesive. This method is considered standard by many professionals.
To begin, measure and cut the pieces using a pair of tin snips. Cut the ends of the pieces that meet on angles and test to ensure they fit together. Apply spray adhesive to both sides of the corner, keeping the can at least 6 inches from the surface. Spray more adhesive on the inside of the corner bead and allow it to set for about 10-15 minutes. The adhesive will attach quickly, so you will only have a few seconds to make sure it is installed straight and square.
When the adhesive is ready, place the bead on the corner. Press the corner bead in place using a pressure tool or the handle of your taping knife. Finish by stapling every 6 to 8 inches.
The advantage of using spray adhesive is that it minimizes slipping during expansion, which can occur when using staples alone. It is important to note that spray adhesive can be tricky to use and may have a strong smell that lingers.
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Using staples
First, prepare the drywall by ensuring any sharp edges are cut or sanded down, and the surface is clean and primed. Measure the drywall from floor to ceiling or from the moulding to the ceiling. Cut the corner bead with snips, ensuring straight cuts and no sharp edges.
Next, apply a light coat of adhesive to both the corner bead and the drywall. You can use a spray adhesive or a brush-on alternative. Wait for the adhesive to become tacky, following the manufacturer's instructions for drying time.
Now, position the corner bead onto the corner, ensuring it is straight and square. Use a compressed air staple gun to staple the corner bead in place. For vinyl corner beads, staples should be spaced every 6 to 8 inches. If you are not using adhesive, staples should be placed more closely together, about 6 inches apart, to ensure a secure hold. Make sure the staples are not sticking out and are driven into the drywall and the stud behind it.
Finally, apply a coat of mud or joint compound over the staples and corner bead. This will help create a smooth, level finish and cover any bulges between staples. Allow the mud to dry, and then sand it down with high-grit sandpaper (150-200 grit) for a smooth finish.
By following these steps, you can effectively install plastic drywall corner beads using staples, creating a strong and clean finish for your drywall corners.
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Mud Set Beads
To install Mud Set Beads, you have two options: using a 4-in-1 Mud Hopper or applying the mud directly onto the corner. For the latter option, you can use a knife or a compound applicator tube. When mixing the compound, ensure that it is thick and not watered down. Once the mud is applied, use a roller tool or the end of a taping knife to press the bead into place. The excess mud will squeeze through the perforations, levelling out the bead and minimizing the amount of mud needed for the setting coat.
After installation, check for the squareness of the bead and make any necessary adjustments. Wipe away any excess mud before applying the fill coat. The Mud Set method is advantageous as it allows for the fill coat to be applied on the same day, reducing job site delays.
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Vinyl corner beads
The spray-and-staple method involves using an adhesive spray, such as Trim-Tex's 847 Spray Adhesive, designed specifically for corner beads, along with staples for added strength. This method minimises slipping during expansion and provides a strong bond between the bead and the drywall. However, it is important to note that some people may prefer to avoid adhesive sprays due to the amount of spray released into the indoor air during application.
The Mud Set method, featuring Trim-Tex's patented Mud Lock Technology, offers the strongest possible bond between the bead, drywall compound, and wall. Mud Set Beads are made from high-impact, rigid vinyl and come in various options, including 90-degree, Jumbo, and Bullnose variants. To install, apply mud directly to the corner using a 4-in-1 Mud Hopper, a knife, or a compound applicator tube. Then, press the bead into place using a roller tool or the end of a taping knife. This method minimises the amount of mud needed and forms an exceptionally strong bond.
The Fast Edge method is similar to the Mud Set method but does not require staples or sprays. It features Mud Lock Technology and a vinyl core, making it a durable and long-lasting solution. To install, apply mud directly to the drywall using a hopper, a knife, or a compound applicator tube. Stick the bead in place, ensuring straight lines, and use a Pro Series Quad Roller to apply even pressure.
It is important to consult the product instructions before beginning any installation project and to consider factors such as the desired level of durability, ease of installation, and personal preference when choosing between these methods.
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Finishing with compound
When it comes to finishing with compound, there are a few different approaches you can take. The standard way to attach a plastic corner bead is with spray adhesive. This spray adhesive is typically a very thin, high-tack contact cement. While it is possible to use contact cement, it can be messier and may fill up the mud lock holes. Most corner bead instructions will recommend using staples in addition to spray adhesive.
If you opt for a Mud Set Bead, you won't need to use glue or staples. These beads are made from high-impact, rigid vinyl and feature Trim-Tex's patented Mud Lock Technology. This technology consists of a series of hooks, or "mud legs," along the bead that grip into the joint compound to create an incredibly strong bond between the bead and the drywall.
To install Mud Set Beads, you can use a 4-in-1 Mud Hopper, a knife, or a compound applicator tube to apply the mud directly to the corner. Once the mud is in place, use a roller tool or the end of a taping knife to press the bead firmly into the corner. The excess mud will squeeze through the perforations, ensuring the bead sits evenly on the corner and minimizing the amount of mud needed for the setting coat.
Another option is to use the spray-and-staple method with standard vinyl corner beads. This method involves adhering the surface of the bead directly to the drywall with spray adhesive, reducing slipping during expansion. Combining this with staples along the "mud leg" provides a strong bond between the bead and the drywall.
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Frequently asked questions
There are three types of plastic drywall corner beads: spray-and-staple standard vinyl, Mud Set, and Fast Edge®.
You can install a spray-and-staple standard vinyl corner bead by using spray adhesive on the surface of the bead and then attaching it directly to the drywall. You can also staple the bead along its mud leg for a stronger bond.
You can install a Mud Set corner bead by applying mud to the corner using a 4-in-1 Mud Hopper, a knife, or a compound applicator tube. Then, press the bead into place with a roller tool or the end of a taping knife.
Using spray adhesive for installing plastic drywall corner beads minimizes slipping during expansion and improves adhesion compared to using staples alone.
Mud Set corner beads are made from high-impact, rigid vinyl and provide an extremely strong bond to the drywall. They are also more durable than traditional corner beads, reducing maintenance costs and the need for replacements.
