Here's one for the books! While constructing a metal building over the last few weeks - my honey house, I started noticing several bees buzzing around while I'm working. I didn't think much of it until today, when I noticed that they had collected something very light colored in their pollen baskets. At first I thought it was pollen, then I saw what they were really collecting. It was the Butyl-Flex Rubber Sealant used to caulk the overlapping metal sheets of the building. This adds new meaning to propolis! No wonder my supers and frames are stuck together so tightly! :-o Mark If what you're doing seems too hard..., You're probably doing it wrong. :-)