Propolis Propolis Propolis or bee glue is a resinous mixture that honey bees produce by mixing saliva and beeswax with exudate gathered from tree buds, sap flows, or other botanical sources. It is used as a sealant for unwanted open spaces in the hive. Propolis is used for small gaps (approximately or less), while larger spaces are usually filled with beeswax. Its color varies depending on its botanical source, with dark brown as the most common. Propolis is sticky at and above , while at lower temperatures, it becomes hard and brittle. While foraging, worker bees primarily harvest pollen and nectar,
Danny Dunn and the Universal Glue a pair of pants was worth the lesson." McGraw-Hill MacDonald and Jane's Archway Books Pocket Books Danny Dunn and the Universal Glue Danny Dunn and the Universal Glue is the fifteenth and final novel in the "Danny Dunn" series of juvenile science fiction/adventure books written by Raymond Abrashkin and Jay Williams. The book was first published in 1977. Professor Bullfinch develops a glue which is stronger than any known glue. He christens it "Irenium" in honor of Irene, of whom he is fond. The Blaze Chemical Company, which built a factory after draining a swamp, has leaked a chemical into