Hot Hide Glue Flakes are available for all rebuilding needs. Large molecule, protein-based product. Infinitely dilutable, warm water clean up, indefinite shelf life when stored dry. 450 gram strength (3-times refined, low odor, fast-dissolving), suitable for all pneumatic cloth, leather and wood repair, including all organettes and Roller Organs. Note: Hot hide glue must be heated in glue pot or water bath during use.