surface-topping-delamination-repair-drill February 19, 2018 432 × 189 Concrete Mender™ Delamination Repair and Topping Slabs Drill a 3/8″ hole into the delimated area and remove dust. Share this: Click to print (Opens in new window) Print Click to email a link to a friend (Opens in new window) Email MoreTweetLike this:Like Loading...