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To ensure a strong and lasting bond, place a heavy, flat object (like a box, book, or tool case) directly over the newly patched carpet area. Allow this weight to sit for an extended period (typically several hours or overnight, depending on the adhesive manufacturer's recommendations) to help the adhesive cure and create a firm connection. Once sufficient time has passed, remove the heavy object and gently smooth the carpet with your hands, blending the newly secured patch with the surrounding carpet for a seamless and uniform appearance. The repair should now be complete, with the carpet firmly re-attached and the frayed edge eliminated.