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With the flooring and riser materials firmly in place, you are ready to install the flush stairnosing. First, scuff or abrade the underside (non-printed side) of the stairnosing with coarse sandpaper to create a better bonding surface for the adhesive. Then, clean the scuffed surface with denatured alcohol applied to a clean rag and allow it to dry completely. Once dry, apply a liberal, uniform bead of a premium construction adhesive, such as Loctite PL Premium, in an S-pattern along the full length of the stairnosing. Position the nosing close to the edge of the installed flooring and rotate it into place. Apply firm pressure to ensure a flush fit to the stair edge and a level, flush fit against the installed flooring. Use painter's tape to hold the stairnosing securely in place while the adhesive cures. Optionally, you can use finishing nails for added security, but remember to pre-drill the nail holes, countersink the nails, and fill all nail holes with a coordinating colored caulk.