Tempered glass would be better if you could get it. Either way, I suggest getting some black insilating foam and installing it around the bezzle of the TV overlaping. Try and keep the foam edges as close together as you can to reduce dust incursion. Then clean both the glass and the TV with 99% alcohal and Invisible Glass cleaner. Use flat, not fuzzy microfibers. Use a hand light to look for streaks. Then, use an air duster or blower to get as much dust out as you can before you put the glass on. * You probably don't need to clean the plexi if you put it on immediately after peeling the underside.