Propolis with control of "Candida albicans" and immunomodulatory effects. Propolis is used by some string instrument makers (violin, viola, cello and bass) as a varnish ingredient. Some workers use it to seal the surface of newly made bridges. Propolis was purportedly used by Antonio Stradivari in the varnish of his instruments. Propolis is used by some chewing gum manufacturers to make propolis gum. Propolis is used to bring about a chemical reaction to convert fats and oils into automobile wax during application. Propolis Propolis or bee glue is a resinous mixture that honey bees produce by mixing saliva and beeswax with
Wood glue normal wood bending can break the bond in some applications. Often, too much adhesive is applied which leads to a much weaker bond. CA has quickly become the dominant adhesive used by builders of balsa wood models, where its strength far exceeds the base materials. Casein glue was used to make strong and robust joints in early aviation, but fell out of favor due to its susceptibility to attack by bacteria. Polyvinyl acetate (PVA), also known as "white glue" or "hobby and craft", is non-toxic and very easy to use, but hard to repair since most glues (including PVA itself)