Hello All,
Yesterday while going through a beekeepers estate sale we came across a large stack of rusted queen excluders. I believe the excluders had been scrapped to remove wax instead of using a better method and surface rust followed as the excluders have not been in use for about five years.
The widow asked me what could be done to renew the excluders. I really do not know of a method for badly rusted excluders but have heard of a few for mildly rusted excluders . Any successful methods BEE-l members want to share?
Rust on queen excluders tears bees wings. Never scrape a queen excluder with a hive tool as the practice removes the coating which protects the excluder from rusting.
Sincerely,
Bob Harrison