Confused by the many diamond polishing pads marketed for concrete countertops? Learn what's important to ensure a high quality finish on concrete with a long-lasting pad. You don't want pads designed for granite, and you don't want pads chosen only because they earn a high profit margin for the seller. You need tightly graded diamonds, the correct binder that won't glaze, the right thickness to ensure both long life and flexibility, and the best channel design to avoid clogging. See how all of these features combine to create the ideal 5" diamond pad for polishing concrete countertops, designed and tested by Jeff Girard.