When installing the drywall, allow for a 1/8” gap between the drywall and the adjacent interior surface to accept the leg of the L-Bead 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 L-Bead to length, subtract ½” for vertical applications. Dry fit the L-Bead to ensure the optimum fit.
For optimal results spray the drywall surface and the flanges of the L-Bead with spray adhesive and position the L-bead into place. Once in position, apply pressure with the handle of your taping knife and then staple the corner bead every 6” – 8” with ½” staples to keep the L-Bead tight to the drywall surface.
Using a 6” taping knife, apply the first coat of joint compound to the surface of the L-Bead. The use 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 an 8” 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.
Sand lightly with 120 grit sandpaper to finish.