When installing the drywall, allow for the appropriate gap between the adjoining drywall sheets to ensure a straight, flat application. Avoid using the tapered edge of the drywall board for this application. Make sure the surface of the drywall is clean and smooth. Measure and cut the 093 Control Joint to length, subtract ½” for vertical applications. Dry fit the control joint to ensure the optimum fit.
For optimal results spray the drywall surface and the flanges of the 093 Control Joint with spray adhesive and position the control joint into place. Once in position, apply pressure with handle of your taping knife and then staple the corner bead every 6” – 8” with ½” staples to keep the 093 Control Joint tight to the drywall surface and to ensure a solid bond.
Using an 8” taping knife, apply the first coat of joint compound to the surface of the 093 Control Joint. The use of lightweight compound or setting-type compound in this step will reduce shrinkage and speed up the drying time. Let this dry completely, for several hours or overnight.
Using a 10” taping knife, apply the final coat of joint compound. Feather the compound beyond the previous coat. The use of all-purpose compound or topping compound will make for a more durable finish. Let this dry completely, for several hours or overnight.
Gently remove the Rip-Bead removable legs after the final coat of compound is dry and before sanding is completed.
Lightly sand with 120 grit sandpaper to finish.