Nov 12 , 2018
Glue Sandpaper to Glass
The first thing you’ll need is a piece of 1/4-in.-thick glass. The exact size isn’t important. A glass shelf, which you can buy at a home center for about $10, works well. Glass is extremely flat, so it’s ideal for sharpening. Next comes the sandpaper. Use high-quality sandpaper-pick the most expensive paper at the home center. The cheap stuff cuts too slow and wears out fast. Look for a combo pack that includes 80-, 150- and 220-grit paper.
You’ll also need spray adhesive for sticking the sandpaper to the glass. A low-tack adhesive is best (it’s available at art supply and craft stores), but the standard spray you’ll find at home centers is also OK-just follow the directions to make a ‘temporary bond.’ When you change paper, use a solvent to remove glue residue from the glass (lacquer thinner works great). Low-tack sprays leave much less adhesive behind than standard sprays.
Prepare your sharpening surface by cutting a sheet of 80-grit sandpaper to fit your glass, then spray a small amount of adhesive onto the sandpaper and press the sandpaper onto the glass. Repeat with 150- and 220-grit sheets. Apply the sandpaper to both sides of the glass-this will prevent the glass from sliding around.