There are two methods to consider when installing Trim-Tex products, Mud Set or 847 Spray and staple. These two techniques are not interchangeable, please consult product instructions before you begin installation.
benefits of mud set
Mud Set Beads are a drywall corner bead made from high impact rigid vinyl and feature Trim-Tex's patented Mud Lock Technology. The Mud Locks create three times more bonding surface than traditional paper faced metal corner bead.
Traditional mud-on corner beads use a paper mud leg to adhere the drywall compound to the wall. Trim-Tex Mud Set Beads feature a specifically engineered pattern of micro perforations along the mud legs of the beads. The micro perforations further bond the drywall compound and the bead to the wall by allowing excess mud to flow through the mud holes. The strength of the bond between the mud legs, drywall compound and wall, combined with the elasticity properties of rigid vinyl, allow the bead to withstand impact.
This strength saves time and money by reducing building maintenance costs. When a traditional corner gets dented, rusts, or forms mold, it needs to be replaced, which is a time consuming process. Trim-Tex Mud Set Beads are strong enough to withstand daily wear-and-tear. If damage does occur, it is typically the drywall mud that fails, which is a quick and affordable fix that does not require ripping out the bead.
installing mud set beads
To install Trim-Tex Mud Set Beads, use the Trim-Tex 4-in-1 Mud Hopper or blade the mud onto the corner. The hopper installs Mud Set 90 Degree Bead, Mud Set Bullnose, Splayed Beads and Bumper Corner Bead with ease to help minimize job site delays. With mud applied press the bead into place with a roller tool or the end of a taping knife. Excess mud will squeeze through the perforations. Check for squareness of the bead, adjusting as needed. Wipe clean and apply fill coat. Mud Set saves time on labor by allowing the fill coat to be applied the very same day.
Watch the Mud Set Corner Bead Installation video below for more information.
benefits of spray adhesive and staple method
The advantage of using 847 Spray Adhesive is that by adhering the surface of the bead directly to the drywall, you minimize slipping during expansion versus using staples alone. Unlike many all-purpose spray adhesives on the market, Trim-Tex 847 Spray Adhesive is designed specifically for corner bead and is made in the U.S.A. 847 is a web spray which improves adhesion over standard mist sprays, and is colored to help identify over spray.
A low-VOC California regulation compliant formula is also available.
installing corner bead with spray adhesive and staples
The spray and staple technique uses a spray adhesive, such as the high-tack, pressure-sensitive Trim-Tex 847 to attach the bead before stapling it in place. Spray continuously from a distance of 6 to 10 inches, being sure to keep the spray moving to avoid buildup on the drywall or bead surface. Apply 847 to the drywall, then to the bead before positioning the bead into place. Press it in place using a pressuring tool or the handle of your taping knife and finish by stapling every four to six inches, Trim-Tex recommends using 1/2" staples.
Although not recommended, If installing only with staples, staple every 2-3 inches.
Order samples today to see which installation method works best for you.