Cover the front surface, leaving enough overhanging material to cover all four sides.
For a 5/8" thick edge, you'll want about an inch of overhang on each side.
Insert knife near one corner and draw outward to form 2 "wings”.
Make sure your knife is sharp!
WRAP THE FIRST SIDE
Crease the edge at a 45º angle.
Gradually fold over the side so the material sticks evenly.
Take your time. If you make a mistake, peel back and re-apply.
Fold one of the wings under the wing next to it.
Trim the wing vertically...
And remove the pointed section.
TRIM BACK EDGE
Use your (sharp!) blade to trim away excess material from the back edges.
WRAP REMAINING EDGES
Repeat the above steps for the remaining edges.
TRIM REMAINING TABS
Cut vertically along the corner edge to remove the overhanging wings.
Don't worry about cutting perfectly...
Apply forceful pressure along the seam.
As a final, optional step, you may gently rub the seam on the corner with medium or fine-grit sandpaper so that no edge can be felt. But don't overdo it!