After several years of good use, the corners of my supers get worn away because of my using the hive tool to pry them apart. Sometimes it's a result of scraping away accumulated wax or propolis. The super's body can be in excellent condition, but because of the wear, unintended entrances develop and make for problems such as robbing and allowing wax moths (and I asssume SHBs) to enter the hive. Sometimes a few weeds can plug the space or duct tape or something similar can make a temporary repair. Does anyone in the forum have a suggestion for a permanent, really good way to fix these "leaking' supers?