Use sandpaper to scrape off the adhesive residue as the last option for removing adhesive from wood. Remember not to scratch the wood, especially if it's a fragile surface like a wooden floor. Wear protective gloves and safety eyewear to safeguard yourself. With 600-grit sandpaper, gently wipe the glue staining until it is level with the board. Sand just the glue, not the wood, while sanding. Switch to finer 1200-grit sandpaper and scrape until all of the adhesives are gone. Using a clean towel, wipe away all glue flakes. Add a wood polish that matches the previous coating if you removed any of the finish during sanding. You may also add varnish to the wooden surface to make it shine.