Gorilla Glue is a one-part, moisture-curing, totally waterproof, non-toxic urethane glue with long open time (10-15 min.) & short clamp time (1-2 hours). It is much stronger than yellow glues, remains flexible for life and won't extrude from joints due to temperature or humidity cycling. It works on oily or waxy exotics without solvent pre-wash, and on wood with moisture content from 8% to 25%. Most joints should be moistened before gluing to ensure strongest bond. Gorilla Glue is an excellent alternative to epoxy or plastic resin glue, thanks to its non-toxic, no-formaldehyde formula, thin to invisible glue line, high strength and short clamp time. Squeeze-out foams up as it cures; once dry, it can be sanded, scraped or planed without dulling or gumming tools. Wet glue cleans up with denatured alcohol. Shelf life is 6 months to one year if the glue is kept sealed and dry.