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
Animal glue ensure no cured PVA glue was remaining before regluing the top. Hide glue also functions as its own clamp. Once the glue begins to gel, it pulls the joint together. Violin makers may glue the center seams of top and back plates together using a "rubbed joint" rather than using clamps. This technique involves coating half of the joint with hot hide glue, and then rubbing the other half against the joint until the hide glue starts to gel, at which point the glue becomes tacky. At this point the plate is set aside without clamps, and the hide glue